Home / 347,672.20-521,508.30-147,999.10

Finding the Fourth Proportional to 347,672.20, 521,508.30 and 147,999.10

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Solution

The fourth proportional to 347,672.20, 521,508.30 and 147,999.10 is: 221,998.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,672.20 : 521,508.30 = 147,999.10 : x
  2. Step 2: Convert to fraction form
    347,672.20/521,508.30 = 147,999.10/x
  3. Step 3: Cross multiply
    347,672.20x = 521,508.30 × 147,999.10
  4. Step 4: Simplify right side
    347,672.20x = 77,182,759,042.53
  5. Step 5: Solve for x
    x = 77,182,759,042.53/347,672.20
  6. Step 6: Final answer
    x = 221,998.65

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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.