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Finding the Fourth Proportional to 347,906.60, 522,032.70 and 137,551.40

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Solution

The fourth proportional to 347,906.60, 522,032.70 and 137,551.40 is: 206,395.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,906.60 : 522,032.70 = 137,551.40 : x
  2. Step 2: Convert to fraction form
    347,906.60/522,032.70 = 137,551.40/x
  3. Step 3: Cross multiply
    347,906.60x = 522,032.70 × 137,551.40
  4. Step 4: Simplify right side
    347,906.60x = 71,806,328,730.78
  5. Step 5: Solve for x
    x = 71,806,328,730.78/347,906.60
  6. Step 6: Final answer
    x = 206,395.42

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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.