Home / 261,395.12-391,599.72-154,460.24

Finding the Fourth Proportional to 261,395.12, 391,599.72 and 154,460.24

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Solution

The fourth proportional to 261,395.12, 391,599.72 and 154,460.24 is: 231,399.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,395.12 : 391,599.72 = 154,460.24 : x
  2. Step 2: Convert to fraction form
    261,395.12/391,599.72 = 154,460.24/x
  3. Step 3: Cross multiply
    261,395.12x = 391,599.72 × 154,460.24
  4. Step 4: Simplify right side
    261,395.12x = 60,486,586,735.13
  5. Step 5: Solve for x
    x = 60,486,586,735.13/261,395.12
  6. Step 6: Final answer
    x = 231,399.07

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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.