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Finding the Fourth Proportional to 559,914.32, 840,221.40 and 227,490.32

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Solution

The fourth proportional to 559,914.32, 840,221.40 and 227,490.32 is: 341,377.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,914.32 : 840,221.40 = 227,490.32 : x
  2. Step 2: Convert to fraction form
    559,914.32/840,221.40 = 227,490.32/x
  3. Step 3: Cross multiply
    559,914.32x = 840,221.40 × 227,490.32
  4. Step 4: Simplify right side
    559,914.32x = 191,142,235,156.85
  5. Step 5: Solve for x
    x = 191,142,235,156.85/559,914.32
  6. Step 6: Final answer
    x = 341,377.65

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.