Home / 208,521.26-312,733.92-124,305.20

Finding the Fourth Proportional to 208,521.26, 312,733.92 and 124,305.20

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Solution

The fourth proportional to 208,521.26, 312,733.92 and 124,305.20 is: 186,429.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,521.26 : 312,733.92 = 124,305.20 : x
  2. Step 2: Convert to fraction form
    208,521.26/312,733.92 = 124,305.20/x
  3. Step 3: Cross multiply
    208,521.26x = 312,733.92 × 124,305.20
  4. Step 4: Simplify right side
    208,521.26x = 38,874,452,472.38
  5. Step 5: Solve for x
    x = 38,874,452,472.38/208,521.26
  6. Step 6: Final answer
    x = 186,429.20

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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.