Home / 546,086.34-819,129.78-172,138.50

Finding the Fourth Proportional to 546,086.34, 819,129.78 and 172,138.50

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Solution

The fourth proportional to 546,086.34, 819,129.78 and 172,138.50 is: 258,207.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,086.34 : 819,129.78 = 172,138.50 : x
  2. Step 2: Convert to fraction form
    546,086.34/819,129.78 = 172,138.50/x
  3. Step 3: Cross multiply
    546,086.34x = 819,129.78 × 172,138.50
  4. Step 4: Simplify right side
    546,086.34x = 141,003,771,634.53
  5. Step 5: Solve for x
    x = 141,003,771,634.53/546,086.34
  6. Step 6: Final answer
    x = 258,207.84

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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.