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Finding the Fourth Proportional to 546,514.70, 819,772.05 and 172,489.10

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Solution

The fourth proportional to 546,514.70, 819,772.05 and 172,489.10 is: 258,733.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,514.70 : 819,772.05 = 172,489.10 : x
  2. Step 2: Convert to fraction form
    546,514.70/819,772.05 = 172,489.10/x
  3. Step 3: Cross multiply
    546,514.70x = 819,772.05 × 172,489.10
  4. Step 4: Simplify right side
    546,514.70x = 141,401,743,109.66
  5. Step 5: Solve for x
    x = 141,401,743,109.66/546,514.70
  6. Step 6: Final answer
    x = 258,733.65

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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.