Home / 347,319.48-520,627.86-137,105.40

Finding the Fourth Proportional to 347,319.48, 520,627.86 and 137,105.40

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Solution

The fourth proportional to 347,319.48, 520,627.86 and 137,105.40 is: 205,519.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,319.48 : 520,627.86 = 137,105.40 : x
  2. Step 2: Convert to fraction form
    347,319.48/520,627.86 = 137,105.40/x
  3. Step 3: Cross multiply
    347,319.48x = 520,627.86 × 137,105.40
  4. Step 4: Simplify right side
    347,319.48x = 71,380,890,996.44
  5. Step 5: Solve for x
    x = 71,380,890,996.44/347,319.48
  6. Step 6: Final answer
    x = 205,519.40

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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.