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Finding the Fourth Proportional to 307,549.88, 424,397.76 and 178,492.10

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Solution

The fourth proportional to 307,549.88, 424,397.76 and 178,492.10 is: 246,306.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,549.88 : 424,397.76 = 178,492.10 : x
  2. Step 2: Convert to fraction form
    307,549.88/424,397.76 = 178,492.10/x
  3. Step 3: Cross multiply
    307,549.88x = 424,397.76 × 178,492.10
  4. Step 4: Simplify right side
    307,549.88x = 75,751,647,417.70
  5. Step 5: Solve for x
    x = 75,751,647,417.70/307,549.88
  6. Step 6: Final answer
    x = 246,306.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.