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Finding the Fourth Proportional to 515,302.39, 773,006.61 and 178,342.45

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Solution

The fourth proportional to 515,302.39, 773,006.61 and 178,342.45 is: 267,532.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,302.39 : 773,006.61 = 178,342.45 : x
  2. Step 2: Convert to fraction form
    515,302.39/773,006.61 = 178,342.45/x
  3. Step 3: Cross multiply
    515,302.39x = 773,006.61 × 178,342.45
  4. Step 4: Simplify right side
    515,302.39x = 137,859,892,693.60
  5. Step 5: Solve for x
    x = 137,859,892,693.60/515,302.39
  6. Step 6: Final answer
    x = 267,532.03

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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.