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Finding the Fourth Proportional to 551,618.78, 827,411.69 and 152,283.92

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Solution

The fourth proportional to 551,618.78, 827,411.69 and 152,283.92 is: 228,421.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,618.78 : 827,411.69 = 152,283.92 : x
  2. Step 2: Convert to fraction form
    551,618.78/827,411.69 = 152,283.92/x
  3. Step 3: Cross multiply
    551,618.78x = 827,411.69 × 152,283.92
  4. Step 4: Simplify right side
    551,618.78x = 126,001,491,850.68
  5. Step 5: Solve for x
    x = 126,001,491,850.68/551,618.78
  6. Step 6: Final answer
    x = 228,421.33

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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.