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Finding the Fourth Proportional to 387,932.02, 535,337.74 and 224,595.42

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Solution

The fourth proportional to 387,932.02, 535,337.74 and 224,595.42 is: 309,936.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,932.02 : 535,337.74 = 224,595.42 : x
  2. Step 2: Convert to fraction form
    387,932.02/535,337.74 = 224,595.42/x
  3. Step 3: Cross multiply
    387,932.02x = 535,337.74 × 224,595.42
  4. Step 4: Simplify right side
    387,932.02x = 120,234,402,830.38
  5. Step 5: Solve for x
    x = 120,234,402,830.38/387,932.02
  6. Step 6: Final answer
    x = 309,936.79

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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.