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Finding the Fourth Proportional to 268,800.01, 402,935.68 and 128,525.83

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Solution

The fourth proportional to 268,800.01, 402,935.68 and 128,525.83 is: 192,662.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,800.01 : 402,935.68 = 128,525.83 : x
  2. Step 2: Convert to fraction form
    268,800.01/402,935.68 = 128,525.83/x
  3. Step 3: Cross multiply
    268,800.01x = 402,935.68 × 128,525.83
  4. Step 4: Simplify right side
    268,800.01x = 51,787,642,708.61
  5. Step 5: Solve for x
    x = 51,787,642,708.61/268,800.01
  6. Step 6: Final answer
    x = 192,662.35

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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.