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Finding the Fourth Proportional to 345,497.52, 518,221.28 and 108,907.92

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Solution

The fourth proportional to 345,497.52, 518,221.28 and 108,907.92 is: 163,354.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,497.52 : 518,221.28 = 108,907.92 : x
  2. Step 2: Convert to fraction form
    345,497.52/518,221.28 = 108,907.92/x
  3. Step 3: Cross multiply
    345,497.52x = 518,221.28 × 108,907.92
  4. Step 4: Simplify right side
    345,497.52x = 56,438,401,704.54
  5. Step 5: Solve for x
    x = 56,438,401,704.54/345,497.52
  6. Step 6: Final answer
    x = 163,354.00

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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.