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Finding the Fourth Proportional to 280,463.27, 387,034.43 and 159,602.04

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Solution

The fourth proportional to 280,463.27, 387,034.43 and 159,602.04 is: 220,248.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,463.27 : 387,034.43 = 159,602.04 : x
  2. Step 2: Convert to fraction form
    280,463.27/387,034.43 = 159,602.04/x
  3. Step 3: Cross multiply
    280,463.27x = 387,034.43 × 159,602.04
  4. Step 4: Simplify right side
    280,463.27x = 61,771,483,780.23
  5. Step 5: Solve for x
    x = 61,771,483,780.23/280,463.27
  6. Step 6: Final answer
    x = 220,248.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.