Home / 208,381.11-312,229.94-88,342.15

Finding the Fourth Proportional to 208,381.11, 312,229.94 and 88,342.15

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Solution

The fourth proportional to 208,381.11, 312,229.94 and 88,342.15 is: 132,368.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,381.11 : 312,229.94 = 88,342.15 : x
  2. Step 2: Convert to fraction form
    208,381.11/312,229.94 = 88,342.15/x
  3. Step 3: Cross multiply
    208,381.11x = 312,229.94 × 88,342.15
  4. Step 4: Simplify right side
    208,381.11x = 27,583,064,193.97
  5. Step 5: Solve for x
    x = 27,583,064,193.97/208,381.11
  6. Step 6: Final answer
    x = 132,368.35

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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.