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Finding the Fourth Proportional to 371,330.47, 556,036.43 and 256,279.97

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Solution

The fourth proportional to 371,330.47, 556,036.43 and 256,279.97 is: 383,757.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,330.47 : 556,036.43 = 256,279.97 : x
  2. Step 2: Convert to fraction form
    371,330.47/556,036.43 = 256,279.97/x
  3. Step 3: Cross multiply
    371,330.47x = 556,036.43 × 256,279.97
  4. Step 4: Simplify right side
    371,330.47x = 142,501,000,188.52
  5. Step 5: Solve for x
    x = 142,501,000,188.52/371,330.47
  6. Step 6: Final answer
    x = 383,757.90

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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.