Home / 347,686.20-521,723.70-147,972.60

Finding the Fourth Proportional to 347,686.20, 521,723.70 and 147,972.60

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Solution

The fourth proportional to 347,686.20, 521,723.70 and 147,972.60 is: 222,041.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,686.20 : 521,723.70 = 147,972.60 : x
  2. Step 2: Convert to fraction form
    347,686.20/521,723.70 = 147,972.60/x
  3. Step 3: Cross multiply
    347,686.20x = 521,723.70 × 147,972.60
  4. Step 4: Simplify right side
    347,686.20x = 77,200,812,370.62
  5. Step 5: Solve for x
    x = 77,200,812,370.62/347,686.20
  6. Step 6: Final answer
    x = 222,041.64

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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.