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Finding the Fourth Proportional to 402,197.52, 555,008.04 and 220,874.16

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Solution

The fourth proportional to 402,197.52, 555,008.04 and 220,874.16 is: 304,792.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,197.52 : 555,008.04 = 220,874.16 : x
  2. Step 2: Convert to fraction form
    402,197.52/555,008.04 = 220,874.16/x
  3. Step 3: Cross multiply
    402,197.52x = 555,008.04 × 220,874.16
  4. Step 4: Simplify right side
    402,197.52x = 122,586,934,628.25
  5. Step 5: Solve for x
    x = 122,586,934,628.25/402,197.52
  6. Step 6: Final answer
    x = 304,792.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.