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Finding the Fourth Proportional to 616.48, 851.52 and 461.92

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Solution

The fourth proportional to 616.48, 851.52 and 461.92 is: 638.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    616.48 : 851.52 = 461.92 : x
  2. Step 2: Convert to fraction form
    616.48/851.52 = 461.92/x
  3. Step 3: Cross multiply
    616.48x = 851.52 × 461.92
  4. Step 4: Simplify right side
    616.48x = 393,334.12
  5. Step 5: Solve for x
    x = 393,334.12/616.48
  6. Step 6: Final answer
    x = 638.03

Related Problems

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Double scale
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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.