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Finding the Fourth Proportional to 347,711.52, 521,648.64 and 107,812.80

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Solution

The fourth proportional to 347,711.52, 521,648.64 and 107,812.80 is: 161,744.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,711.52 : 521,648.64 = 107,812.80 : x
  2. Step 2: Convert to fraction form
    347,711.52/521,648.64 = 107,812.80/x
  3. Step 3: Cross multiply
    347,711.52x = 521,648.64 × 107,812.80
  4. Step 4: Simplify right side
    347,711.52x = 56,240,400,494.59
  5. Step 5: Solve for x
    x = 56,240,400,494.59/347,711.52
  6. Step 6: Final answer
    x = 161,744.43

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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.