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Finding the Fourth Proportional to 491,546.59, 737,318.42 and 221,358.40

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Solution

The fourth proportional to 491,546.59, 737,318.42 and 221,358.40 is: 332,036.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,546.59 : 737,318.42 = 221,358.40 : x
  2. Step 2: Convert to fraction form
    491,546.59/737,318.42 = 221,358.40/x
  3. Step 3: Cross multiply
    491,546.59x = 737,318.42 × 221,358.40
  4. Step 4: Simplify right side
    491,546.59x = 163,211,625,741.73
  5. Step 5: Solve for x
    x = 163,211,625,741.73/491,546.59
  6. Step 6: Final answer
    x = 332,036.94

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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.