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Finding the Fourth Proportional to 268,280.80, 402,421.20 and 224,978.20

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Solution

The fourth proportional to 268,280.80, 402,421.20 and 224,978.20 is: 337,467.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,280.80 : 402,421.20 = 224,978.20 : x
  2. Step 2: Convert to fraction form
    268,280.80/402,421.20 = 224,978.20/x
  3. Step 3: Cross multiply
    268,280.80x = 402,421.20 × 224,978.20
  4. Step 4: Simplify right side
    268,280.80x = 90,535,997,217.84
  5. Step 5: Solve for x
    x = 90,535,997,217.84/268,280.80
  6. Step 6: Final answer
    x = 337,467.30

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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.