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Finding the Fourth Proportional to 347,609.97, 520,993.89 and 147,510

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Solution

The fourth proportional to 347,609.97, 520,993.89 and 147,510 is: 221,086.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,609.97 : 520,993.89 = 147,510 : x
  2. Step 2: Convert to fraction form
    347,609.97/520,993.89 = 147,510/x
  3. Step 3: Cross multiply
    347,609.97x = 520,993.89 × 147,510
  4. Step 4: Simplify right side
    347,609.97x = 76,851,808,713.90
  5. Step 5: Solve for x
    x = 76,851,808,713.90/347,609.97
  6. Step 6: Final answer
    x = 221,086.32

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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.