Home / 558,000.20-837,000.30-203,025.80

Finding the Fourth Proportional to 558,000.20, 837,000.30 and 203,025.80

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Solution

The fourth proportional to 558,000.20, 837,000.30 and 203,025.80 is: 304,538.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,000.20 : 837,000.30 = 203,025.80 : x
  2. Step 2: Convert to fraction form
    558,000.20/837,000.30 = 203,025.80/x
  3. Step 3: Cross multiply
    558,000.20x = 837,000.30 × 203,025.80
  4. Step 4: Simplify right side
    558,000.20x = 169,932,655,507.74
  5. Step 5: Solve for x
    x = 169,932,655,507.74/558,000.20
  6. Step 6: Final answer
    x = 304,538.70

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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.