Home / 316,191.09-436,338.57-172,949.88

Finding the Fourth Proportional to 316,191.09, 436,338.57 and 172,949.88

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Solution

The fourth proportional to 316,191.09, 436,338.57 and 172,949.88 is: 238,668.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,191.09 : 436,338.57 = 172,949.88 : x
  2. Step 2: Convert to fraction form
    316,191.09/436,338.57 = 172,949.88/x
  3. Step 3: Cross multiply
    316,191.09x = 436,338.57 × 172,949.88
  4. Step 4: Simplify right side
    316,191.09x = 75,464,703,320.87
  5. Step 5: Solve for x
    x = 75,464,703,320.87/316,191.09
  6. Step 6: Final answer
    x = 238,668.03

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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.