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Finding the Fourth Proportional to 288,775, 398,349.50 and 167,902.92

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Solution

The fourth proportional to 288,775, 398,349.50 and 167,902.92 is: 231,613.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,775 : 398,349.50 = 167,902.92 : x
  2. Step 2: Convert to fraction form
    288,775/398,349.50 = 167,902.92/x
  3. Step 3: Cross multiply
    288,775x = 398,349.50 × 167,902.92
  4. Step 4: Simplify right side
    288,775x = 66,884,044,230.54
  5. Step 5: Solve for x
    x = 66,884,044,230.54/288,775
  6. Step 6: Final answer
    x = 231,613.00

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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.