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Finding the Fourth Proportional to 637,423.64, 955,912.65 and 188,025.21

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Solution

The fourth proportional to 637,423.64, 955,912.65 and 188,025.21 is: 281,972.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,423.64 : 955,912.65 = 188,025.21 : x
  2. Step 2: Convert to fraction form
    637,423.64/955,912.65 = 188,025.21/x
  3. Step 3: Cross multiply
    637,423.64x = 955,912.65 × 188,025.21
  4. Step 4: Simplify right side
    637,423.64x = 179,735,676,757.91
  5. Step 5: Solve for x
    x = 179,735,676,757.91/637,423.64
  6. Step 6: Final answer
    x = 281,972.09

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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.