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Finding the Fourth Proportional to 474,641.38, 655,002.72 and 256,849.89

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Solution

The fourth proportional to 474,641.38, 655,002.72 and 256,849.89 is: 354,451.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,641.38 : 655,002.72 = 256,849.89 : x
  2. Step 2: Convert to fraction form
    474,641.38/655,002.72 = 256,849.89/x
  3. Step 3: Cross multiply
    474,641.38x = 655,002.72 × 256,849.89
  4. Step 4: Simplify right side
    474,641.38x = 168,237,375,297.45
  5. Step 5: Solve for x
    x = 168,237,375,297.45/474,641.38
  6. Step 6: Final answer
    x = 354,451.56

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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.