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Finding the Fourth Proportional to 256,877.18, 385,220.18 and 88,350.20

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Solution

The fourth proportional to 256,877.18, 385,220.18 and 88,350.20 is: 132,492.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,877.18 : 385,220.18 = 88,350.20 : x
  2. Step 2: Convert to fraction form
    256,877.18/385,220.18 = 88,350.20/x
  3. Step 3: Cross multiply
    256,877.18x = 385,220.18 × 88,350.20
  4. Step 4: Simplify right side
    256,877.18x = 34,034,279,947.04
  5. Step 5: Solve for x
    x = 34,034,279,947.04/256,877.18
  6. Step 6: Final answer
    x = 132,492.42

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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.