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Finding the Fourth Proportional to 546,520.70, 819,781.05 and 172,495.10

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Solution

The fourth proportional to 546,520.70, 819,781.05 and 172,495.10 is: 258,742.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,520.70 : 819,781.05 = 172,495.10 : x
  2. Step 2: Convert to fraction form
    546,520.70/819,781.05 = 172,495.10/x
  3. Step 3: Cross multiply
    546,520.70x = 819,781.05 × 172,495.10
  4. Step 4: Simplify right side
    546,520.70x = 141,408,214,197.86
  5. Step 5: Solve for x
    x = 141,408,214,197.86/546,520.70
  6. Step 6: Final answer
    x = 258,742.65

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Similar ratio
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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.