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Finding the Fourth Proportional to 274,240.80, 411,402.24 and 87,294.24

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Solution

The fourth proportional to 274,240.80, 411,402.24 and 87,294.24 is: 130,954.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,240.80 : 411,402.24 = 87,294.24 : x
  2. Step 2: Convert to fraction form
    274,240.80/411,402.24 = 87,294.24/x
  3. Step 3: Cross multiply
    274,240.80x = 411,402.24 × 87,294.24
  4. Step 4: Simplify right side
    274,240.80x = 35,913,045,875.10
  5. Step 5: Solve for x
    x = 35,913,045,875.10/274,240.80
  6. Step 6: Final answer
    x = 130,954.42

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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.