Home / 316,190.09-436,337.19-172,948.88

Finding the Fourth Proportional to 316,190.09, 436,337.19 and 172,948.88

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Solution

The fourth proportional to 316,190.09, 436,337.19 and 172,948.88 is: 238,666.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,190.09 : 436,337.19 = 172,948.88 : x
  2. Step 2: Convert to fraction form
    316,190.09/436,337.19 = 172,948.88/x
  3. Step 3: Cross multiply
    316,190.09x = 436,337.19 × 172,948.88
  4. Step 4: Simplify right side
    316,190.09x = 75,464,026,131.16
  5. Step 5: Solve for x
    x = 75,464,026,131.16/316,190.09
  6. Step 6: Final answer
    x = 238,666.64

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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.