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Finding the Fourth Proportional to 198,423.88, 297,549.70 and 72,022.12

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Solution

The fourth proportional to 198,423.88, 297,549.70 and 72,022.12 is: 108,001.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,423.88 : 297,549.70 = 72,022.12 : x
  2. Step 2: Convert to fraction form
    198,423.88/297,549.70 = 72,022.12/x
  3. Step 3: Cross multiply
    198,423.88x = 297,549.70 × 72,022.12
  4. Step 4: Simplify right side
    198,423.88x = 21,430,159,275.43
  5. Step 5: Solve for x
    x = 21,430,159,275.43/198,423.88
  6. Step 6: Final answer
    x = 108,001.92

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1.5x scale

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.