Home / 308,882.11-426,254.04-172,917.17

Finding the Fourth Proportional to 308,882.11, 426,254.04 and 172,917.17

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Solution

The fourth proportional to 308,882.11, 426,254.04 and 172,917.17 is: 238,623.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,882.11 : 426,254.04 = 172,917.17 : x
  2. Step 2: Convert to fraction form
    308,882.11/426,254.04 = 172,917.17/x
  3. Step 3: Cross multiply
    308,882.11x = 426,254.04 × 172,917.17
  4. Step 4: Simplify right side
    308,882.11x = 73,706,642,297.87
  5. Step 5: Solve for x
    x = 73,706,642,297.87/308,882.11
  6. Step 6: Final answer
    x = 238,623.86

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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.