Home / 316,104.49-436,224.18-172,864.63

Finding the Fourth Proportional to 316,104.49, 436,224.18 and 172,864.63

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Solution

The fourth proportional to 316,104.49, 436,224.18 and 172,864.63 is: 238,553.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,104.49 : 436,224.18 = 172,864.63 : x
  2. Step 2: Convert to fraction form
    316,104.49/436,224.18 = 172,864.63/x
  3. Step 3: Cross multiply
    316,104.49x = 436,224.18 × 172,864.63
  4. Step 4: Simplify right side
    316,104.49x = 75,407,731,472.75
  5. Step 5: Solve for x
    x = 75,407,731,472.75/316,104.49
  6. Step 6: Final answer
    x = 238,553.18

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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.