Home / 198,653.10-297,885.84-72,204.38

Finding the Fourth Proportional to 198,653.10, 297,885.84 and 72,204.38

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Solution

The fourth proportional to 198,653.10, 297,885.84 and 72,204.38 is: 108,272.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,653.10 : 297,885.84 = 72,204.38 : x
  2. Step 2: Convert to fraction form
    198,653.10/297,885.84 = 72,204.38/x
  3. Step 3: Cross multiply
    198,653.10x = 297,885.84 × 72,204.38
  4. Step 4: Simplify right side
    198,653.10x = 21,508,662,387.98
  5. Step 5: Solve for x
    x = 21,508,662,387.98/198,653.10
  6. Step 6: Final answer
    x = 108,272.47

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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.