Home / 208,290.57-287,440.41-112,797.24

Finding the Fourth Proportional to 208,290.57, 287,440.41 and 112,797.24

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Solution

The fourth proportional to 208,290.57, 287,440.41 and 112,797.24 is: 155,659.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,290.57 : 287,440.41 = 112,797.24 : x
  2. Step 2: Convert to fraction form
    208,290.57/287,440.41 = 112,797.24/x
  3. Step 3: Cross multiply
    208,290.57x = 287,440.41 × 112,797.24
  4. Step 4: Simplify right side
    208,290.57x = 32,422,484,912.47
  5. Step 5: Solve for x
    x = 32,422,484,912.47/208,290.57
  6. Step 6: Final answer
    x = 155,659.88

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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.