Home / 261,521.82-391,908.46-148,969.62

Finding the Fourth Proportional to 261,521.82, 391,908.46 and 148,969.62

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Solution

The fourth proportional to 261,521.82, 391,908.46 and 148,969.62 is: 223,241.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,521.82 : 391,908.46 = 148,969.62 : x
  2. Step 2: Convert to fraction form
    261,521.82/391,908.46 = 148,969.62/x
  3. Step 3: Cross multiply
    261,521.82x = 391,908.46 × 148,969.62
  4. Step 4: Simplify right side
    261,521.82x = 58,382,454,360.99
  5. Step 5: Solve for x
    x = 58,382,454,360.99/261,521.82
  6. Step 6: Final answer
    x = 223,241.24

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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.