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Finding the Fourth Proportional to 537,185.38, 805,869.87 and 221,469.70

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Solution

The fourth proportional to 537,185.38, 805,869.87 and 221,469.70 is: 332,242.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,185.38 : 805,869.87 = 221,469.70 : x
  2. Step 2: Convert to fraction form
    537,185.38/805,869.87 = 221,469.70/x
  3. Step 3: Cross multiply
    537,185.38x = 805,869.87 × 221,469.70
  4. Step 4: Simplify right side
    537,185.38x = 178,475,758,347.94
  5. Step 5: Solve for x
    x = 178,475,758,347.94/537,185.38
  6. Step 6: Final answer
    x = 332,242.40

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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.