Home / 261,399.12-391,605.72-154,464.24

Finding the Fourth Proportional to 261,399.12, 391,605.72 and 154,464.24

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Solution

The fourth proportional to 261,399.12, 391,605.72 and 154,464.24 is: 231,405.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,399.12 : 391,605.72 = 154,464.24 : x
  2. Step 2: Convert to fraction form
    261,399.12/391,605.72 = 154,464.24/x
  3. Step 3: Cross multiply
    261,399.12x = 391,605.72 × 154,464.24
  4. Step 4: Simplify right side
    261,399.12x = 60,489,079,919.45
  5. Step 5: Solve for x
    x = 60,489,079,919.45/261,399.12
  6. Step 6: Final answer
    x = 231,405.06

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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.