Home / 208,363.20-287,541.92-112,869.60

Finding the Fourth Proportional to 208,363.20, 287,541.92 and 112,869.60

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Solution

The fourth proportional to 208,363.20, 287,541.92 and 112,869.60 is: 155,760.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,363.20 : 287,541.92 = 112,869.60 : x
  2. Step 2: Convert to fraction form
    208,363.20/287,541.92 = 112,869.60/x
  3. Step 3: Cross multiply
    208,363.20x = 287,541.92 × 112,869.60
  4. Step 4: Simplify right side
    208,363.20x = 32,454,741,493.63
  5. Step 5: Solve for x
    x = 32,454,741,493.63/208,363.20
  6. Step 6: Final answer
    x = 155,760.43

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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.