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Finding the Fourth Proportional to 322,992.13, 484,488.34 and 145,291.53

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Solution

The fourth proportional to 322,992.13, 484,488.34 and 145,291.53 is: 217,937.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,992.13 : 484,488.34 = 145,291.53 : x
  2. Step 2: Convert to fraction form
    322,992.13/484,488.34 = 145,291.53/x
  3. Step 3: Cross multiply
    322,992.13x = 484,488.34 × 145,291.53
  4. Step 4: Simplify right side
    322,992.13x = 70,392,050,822.97
  5. Step 5: Solve for x
    x = 70,392,050,822.97/322,992.13
  6. Step 6: Final answer
    x = 217,937.36

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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.