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Finding the Fourth Proportional to 217,562.70, 326,344.05 and 124,077.90

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Solution

The fourth proportional to 217,562.70, 326,344.05 and 124,077.90 is: 186,116.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,562.70 : 326,344.05 = 124,077.90 : x
  2. Step 2: Convert to fraction form
    217,562.70/326,344.05 = 124,077.90/x
  3. Step 3: Cross multiply
    217,562.70x = 326,344.05 × 124,077.90
  4. Step 4: Simplify right side
    217,562.70x = 40,492,084,401.50
  5. Step 5: Solve for x
    x = 40,492,084,401.50/217,562.70
  6. Step 6: Final answer
    x = 186,116.85

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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.