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Finding the Fourth Proportional to 256,515.51, 384,737.12 and 88,032.88

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Solution

The fourth proportional to 256,515.51, 384,737.12 and 88,032.88 is: 132,036.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,515.51 : 384,737.12 = 88,032.88 : x
  2. Step 2: Convert to fraction form
    256,515.51/384,737.12 = 88,032.88/x
  3. Step 3: Cross multiply
    256,515.51x = 384,737.12 × 88,032.88
  4. Step 4: Simplify right side
    256,515.51x = 33,869,516,716.51
  5. Step 5: Solve for x
    x = 33,869,516,716.51/256,515.51
  6. Step 6: Final answer
    x = 132,036.92

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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.