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Finding the Fourth Proportional to 491,545.59, 737,316.92 and 221,357.40

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Solution

The fourth proportional to 491,545.59, 737,316.92 and 221,357.40 is: 332,035.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,545.59 : 737,316.92 = 221,357.40 : x
  2. Step 2: Convert to fraction form
    491,545.59/737,316.92 = 221,357.40/x
  3. Step 3: Cross multiply
    491,545.59x = 737,316.92 × 221,357.40
  4. Step 4: Simplify right side
    491,545.59x = 163,210,556,387.21
  5. Step 5: Solve for x
    x = 163,210,556,387.21/491,545.59
  6. Step 6: Final answer
    x = 332,035.44

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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.