Home / 268,728.57-370,845-147,877.65

Finding the Fourth Proportional to 268,728.57, 370,845 and 147,877.65

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Solution

The fourth proportional to 268,728.57, 370,845 and 147,877.65 is: 204,070.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,728.57 : 370,845 = 147,877.65 : x
  2. Step 2: Convert to fraction form
    268,728.57/370,845 = 147,877.65/x
  3. Step 3: Cross multiply
    268,728.57x = 370,845 × 147,877.65
  4. Step 4: Simplify right side
    268,728.57x = 54,839,687,114.25
  5. Step 5: Solve for x
    x = 54,839,687,114.25/268,728.57
  6. Step 6: Final answer
    x = 204,070.92

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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.