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Finding the Fourth Proportional to 347,130.45, 520,593.62 and 147,449.25

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Solution

The fourth proportional to 347,130.45, 520,593.62 and 147,449.25 is: 221,130.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,130.45 : 520,593.62 = 147,449.25 : x
  2. Step 2: Convert to fraction form
    347,130.45/520,593.62 = 147,449.25/x
  3. Step 3: Cross multiply
    347,130.45x = 520,593.62 × 147,449.25
  4. Step 4: Simplify right side
    347,130.45x = 76,761,138,086.54
  5. Step 5: Solve for x
    x = 76,761,138,086.54/347,130.45
  6. Step 6: Final answer
    x = 221,130.52

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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.