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Finding the Fourth Proportional to 559,912.32, 840,218.40 and 227,488.32

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Solution

The fourth proportional to 559,912.32, 840,218.40 and 227,488.32 is: 341,374.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,912.32 : 840,218.40 = 227,488.32 : x
  2. Step 2: Convert to fraction form
    559,912.32/840,218.40 = 227,488.32/x
  3. Step 3: Cross multiply
    559,912.32x = 840,218.40 × 227,488.32
  4. Step 4: Simplify right side
    559,912.32x = 191,139,872,249.09
  5. Step 5: Solve for x
    x = 191,139,872,249.09/559,912.32
  6. Step 6: Final answer
    x = 341,374.65

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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.