Home / 347,344.20-520,886.70-136,938.60

Finding the Fourth Proportional to 347,344.20, 520,886.70 and 136,938.60

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Solution

The fourth proportional to 347,344.20, 520,886.70 and 136,938.60 is: 205,356.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,344.20 : 520,886.70 = 136,938.60 : x
  2. Step 2: Convert to fraction form
    347,344.20/520,886.70 = 136,938.60/x
  3. Step 3: Cross multiply
    347,344.20x = 520,886.70 × 136,938.60
  4. Step 4: Simplify right side
    347,344.20x = 71,329,495,456.62
  5. Step 5: Solve for x
    x = 71,329,495,456.62/347,344.20
  6. Step 6: Final answer
    x = 205,356.81

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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.