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Finding the Fourth Proportional to 268,801.01, 402,937.18 and 128,526.83

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Solution

The fourth proportional to 268,801.01, 402,937.18 and 128,526.83 is: 192,663.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,801.01 : 402,937.18 = 128,526.83 : x
  2. Step 2: Convert to fraction form
    268,801.01/402,937.18 = 128,526.83/x
  3. Step 3: Cross multiply
    268,801.01x = 402,937.18 × 128,526.83
  4. Step 4: Simplify right side
    268,801.01x = 51,788,238,434.54
  5. Step 5: Solve for x
    x = 51,788,238,434.54/268,801.01
  6. Step 6: Final answer
    x = 192,663.85

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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.