Home / 308,297.23-425,395.76-172,287.70

Finding the Fourth Proportional to 308,297.23, 425,395.76 and 172,287.70

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Solution

The fourth proportional to 308,297.23, 425,395.76 and 172,287.70 is: 237,726.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,297.23 : 425,395.76 = 172,287.70 : x
  2. Step 2: Convert to fraction form
    308,297.23/425,395.76 = 172,287.70/x
  3. Step 3: Cross multiply
    308,297.23x = 425,395.76 × 172,287.70
  4. Step 4: Simplify right side
    308,297.23x = 73,290,455,155.22
  5. Step 5: Solve for x
    x = 73,290,455,155.22/308,297.23
  6. Step 6: Final answer
    x = 237,726.61

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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.