Home / 347,720.80-521,581.20-268,891.60

Finding the Fourth Proportional to 347,720.80, 521,581.20 and 268,891.60

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Solution

The fourth proportional to 347,720.80, 521,581.20 and 268,891.60 is: 403,337.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,720.80 : 521,581.20 = 268,891.60 : x
  2. Step 2: Convert to fraction form
    347,720.80/521,581.20 = 268,891.60/x
  3. Step 3: Cross multiply
    347,720.80x = 521,581.20 × 268,891.60
  4. Step 4: Simplify right side
    347,720.80x = 140,248,803,397.92
  5. Step 5: Solve for x
    x = 140,248,803,397.92/347,720.80
  6. Step 6: Final answer
    x = 403,337.40

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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.