Home / 488,259.29-731,514.13-172,514.81

Finding the Fourth Proportional to 488,259.29, 731,514.13 and 172,514.81

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Solution

The fourth proportional to 488,259.29, 731,514.13 and 172,514.81 is: 258,463.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,259.29 : 731,514.13 = 172,514.81 : x
  2. Step 2: Convert to fraction form
    488,259.29/731,514.13 = 172,514.81/x
  3. Step 3: Cross multiply
    488,259.29x = 731,514.13 × 172,514.81
  4. Step 4: Simplify right side
    488,259.29x = 126,197,021,149.27
  5. Step 5: Solve for x
    x = 126,197,021,149.27/488,259.29
  6. Step 6: Final answer
    x = 258,463.12

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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.