Home / 261,179.20-391,752.36-155,918.88

Finding the Fourth Proportional to 261,179.20, 391,752.36 and 155,918.88

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Solution

The fourth proportional to 261,179.20, 391,752.36 and 155,918.88 is: 233,868.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,179.20 : 391,752.36 = 155,918.88 : x
  2. Step 2: Convert to fraction form
    261,179.20/391,752.36 = 155,918.88/x
  3. Step 3: Cross multiply
    261,179.20x = 391,752.36 × 155,918.88
  4. Step 4: Simplify right side
    261,179.20x = 61,081,589,208.56
  5. Step 5: Solve for x
    x = 61,081,589,208.56/261,179.20
  6. Step 6: Final answer
    x = 233,868.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.