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Finding the Fourth Proportional to 256,269.60, 384,404.40 and 252,770.40

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Solution

The fourth proportional to 256,269.60, 384,404.40 and 252,770.40 is: 379,155.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,269.60 : 384,404.40 = 252,770.40 : x
  2. Step 2: Convert to fraction form
    256,269.60/384,404.40 = 252,770.40/x
  3. Step 3: Cross multiply
    256,269.60x = 384,404.40 × 252,770.40
  4. Step 4: Simplify right side
    256,269.60x = 97,166,053,949.76
  5. Step 5: Solve for x
    x = 97,166,053,949.76/256,269.60
  6. Step 6: Final answer
    x = 379,155.60

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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.