Home / 208,270.16-287,414.20-112,776.85

Finding the Fourth Proportional to 208,270.16, 287,414.20 and 112,776.85

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Solution

The fourth proportional to 208,270.16, 287,414.20 and 112,776.85 is: 155,632.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,270.16 : 287,414.20 = 112,776.85 : x
  2. Step 2: Convert to fraction form
    208,270.16/287,414.20 = 112,776.85/x
  3. Step 3: Cross multiply
    208,270.16x = 287,414.20 × 112,776.85
  4. Step 4: Simplify right side
    208,270.16x = 32,413,668,198.60
  5. Step 5: Solve for x
    x = 32,413,668,198.60/208,270.16
  6. Step 6: Final answer
    x = 155,632.80

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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.