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Finding the Fourth Proportional to 491,176.66, 736,765.17 and 220,989.22

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Solution

The fourth proportional to 491,176.66, 736,765.17 and 220,989.22 is: 331,483.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,176.66 : 736,765.17 = 220,989.22 : x
  2. Step 2: Convert to fraction form
    491,176.66/736,765.17 = 220,989.22/x
  3. Step 3: Cross multiply
    491,176.66x = 736,765.17 × 220,989.22
  4. Step 4: Simplify right side
    491,176.66x = 162,817,160,241.47
  5. Step 5: Solve for x
    x = 162,817,160,241.47/491,176.66
  6. Step 6: Final answer
    x = 331,483.91

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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.