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Finding the Fourth Proportional to 342,237.96, 513,317.70 and 89,542.86

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Solution

The fourth proportional to 342,237.96, 513,317.70 and 89,542.86 is: 134,304.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,237.96 : 513,317.70 = 89,542.86 : x
  2. Step 2: Convert to fraction form
    342,237.96/513,317.70 = 89,542.86/x
  3. Step 3: Cross multiply
    342,237.96x = 513,317.70 × 89,542.86
  4. Step 4: Simplify right side
    342,237.96x = 45,963,934,946.62
  5. Step 5: Solve for x
    x = 45,963,934,946.62/342,237.96
  6. Step 6: Final answer
    x = 134,304.02

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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.