Home / 208,284.06-287,432.28-112,790.91

Finding the Fourth Proportional to 208,284.06, 287,432.28 and 112,790.91

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Solution

The fourth proportional to 208,284.06, 287,432.28 and 112,790.91 is: 155,651.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,284.06 : 287,432.28 = 112,790.91 : x
  2. Step 2: Convert to fraction form
    208,284.06/287,432.28 = 112,790.91/x
  3. Step 3: Cross multiply
    208,284.06x = 287,432.28 × 112,790.91
  4. Step 4: Simplify right side
    208,284.06x = 32,419,748,424.57
  5. Step 5: Solve for x
    x = 32,419,748,424.57/208,284.06
  6. Step 6: Final answer
    x = 155,651.61

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1.5x scale

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.