Home / 347,746.20-521,489.70-137,340.60

Finding the Fourth Proportional to 347,746.20, 521,489.70 and 137,340.60

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Solution

The fourth proportional to 347,746.20, 521,489.70 and 137,340.60 is: 205,959.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,746.20 : 521,489.70 = 137,340.60 : x
  2. Step 2: Convert to fraction form
    347,746.20/521,489.70 = 137,340.60/x
  3. Step 3: Cross multiply
    347,746.20x = 521,489.70 × 137,340.60
  4. Step 4: Simplify right side
    347,746.20x = 71,621,708,291.82
  5. Step 5: Solve for x
    x = 71,621,708,291.82/347,746.20
  6. Step 6: Final answer
    x = 205,959.72

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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.