Home / 347,788.60-521,855.70-137,433.40

Finding the Fourth Proportional to 347,788.60, 521,855.70 and 137,433.40

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Solution

The fourth proportional to 347,788.60, 521,855.70 and 137,433.40 is: 206,218.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,788.60 : 521,855.70 = 137,433.40 : x
  2. Step 2: Convert to fraction form
    347,788.60/521,855.70 = 137,433.40/x
  3. Step 3: Cross multiply
    347,788.60x = 521,855.70 × 137,433.40
  4. Step 4: Simplify right side
    347,788.60x = 71,720,403,160.38
  5. Step 5: Solve for x
    x = 71,720,403,160.38/347,788.60
  6. Step 6: Final answer
    x = 206,218.38

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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.