Home / 308,306.25-425,453.66-172,340.46

Finding the Fourth Proportional to 308,306.25, 425,453.66 and 172,340.46

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Solution

The fourth proportional to 308,306.25, 425,453.66 and 172,340.46 is: 237,824.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,306.25 : 425,453.66 = 172,340.46 : x
  2. Step 2: Convert to fraction form
    308,306.25/425,453.66 = 172,340.46/x
  3. Step 3: Cross multiply
    308,306.25x = 425,453.66 × 172,340.46
  4. Step 4: Simplify right side
    308,306.25x = 73,322,877,776.67
  5. Step 5: Solve for x
    x = 73,322,877,776.67/308,306.25
  6. Step 6: Final answer
    x = 237,824.82

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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.