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Finding the Fourth Proportional to 342,044.37, 513,020.39 and 89,342.60

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Solution

The fourth proportional to 342,044.37, 513,020.39 and 89,342.60 is: 134,001.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,044.37 : 513,020.39 = 89,342.60 : x
  2. Step 2: Convert to fraction form
    342,044.37/513,020.39 = 89,342.60/x
  3. Step 3: Cross multiply
    342,044.37x = 513,020.39 × 89,342.60
  4. Step 4: Simplify right side
    342,044.37x = 45,834,572,483.80
  5. Step 5: Solve for x
    x = 45,834,572,483.80/342,044.37
  6. Step 6: Final answer
    x = 134,001.83

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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.