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Finding the Fourth Proportional to 342,465.52, 513,001.96 and 279,510

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Solution

The fourth proportional to 342,465.52, 513,001.96 and 279,510 is: 418,696.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,465.52 : 513,001.96 = 279,510 : x
  2. Step 2: Convert to fraction form
    342,465.52/513,001.96 = 279,510/x
  3. Step 3: Cross multiply
    342,465.52x = 513,001.96 × 279,510
  4. Step 4: Simplify right side
    342,465.52x = 143,389,177,839.60
  5. Step 5: Solve for x
    x = 143,389,177,839.60/342,465.52
  6. Step 6: Final answer
    x = 418,696.68

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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.