Home / 347,587.20-521,251.20-137,181.60

Finding the Fourth Proportional to 347,587.20, 521,251.20 and 137,181.60

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Solution

The fourth proportional to 347,587.20, 521,251.20 and 137,181.60 is: 205,721.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,587.20 : 521,251.20 = 137,181.60 : x
  2. Step 2: Convert to fraction form
    347,587.20/521,251.20 = 137,181.60/x
  3. Step 3: Cross multiply
    347,587.20x = 521,251.20 × 137,181.60
  4. Step 4: Simplify right side
    347,587.20x = 71,506,073,617.92
  5. Step 5: Solve for x
    x = 71,506,073,617.92/347,587.20
  6. Step 6: Final answer
    x = 205,721.25

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1.5x scale

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.