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Finding the Fourth Proportional to 256,833.33, 385,154.19 and 88,305.93

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Solution

The fourth proportional to 256,833.33, 385,154.19 and 88,305.93 is: 132,425.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,833.33 : 385,154.19 = 88,305.93 : x
  2. Step 2: Convert to fraction form
    256,833.33/385,154.19 = 88,305.93/x
  3. Step 3: Cross multiply
    256,833.33x = 385,154.19 × 88,305.93
  4. Step 4: Simplify right side
    256,833.33x = 34,011,398,941.35
  5. Step 5: Solve for x
    x = 34,011,398,941.35/256,833.33
  6. Step 6: Final answer
    x = 132,425.95

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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.