Home / 208,284.28-287,432.46-112,791.08

Finding the Fourth Proportional to 208,284.28, 287,432.46 and 112,791.08

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Solution

The fourth proportional to 208,284.28, 287,432.46 and 112,791.08 is: 155,651.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,284.28 : 287,432.46 = 112,791.08 : x
  2. Step 2: Convert to fraction form
    208,284.28/287,432.46 = 112,791.08/x
  3. Step 3: Cross multiply
    208,284.28x = 287,432.46 × 112,791.08
  4. Step 4: Simplify right side
    208,284.28x = 32,419,817,590.46
  5. Step 5: Solve for x
    x = 32,419,817,590.46/208,284.28
  6. Step 6: Final answer
    x = 155,651.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.