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Finding the Fourth Proportional to 658,360.20, 987,540.30 and 237,649.80

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Solution

The fourth proportional to 658,360.20, 987,540.30 and 237,649.80 is: 356,474.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,360.20 : 987,540.30 = 237,649.80 : x
  2. Step 2: Convert to fraction form
    658,360.20/987,540.30 = 237,649.80/x
  3. Step 3: Cross multiply
    658,360.20x = 987,540.30 × 237,649.80
  4. Step 4: Simplify right side
    658,360.20x = 234,688,754,786.94
  5. Step 5: Solve for x
    x = 234,688,754,786.94/658,360.20
  6. Step 6: Final answer
    x = 356,474.70

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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.