Home / 391,414.23-540,142.70-230,233.95

Finding the Fourth Proportional to 391,414.23, 540,142.70 and 230,233.95

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Solution

The fourth proportional to 391,414.23, 540,142.70 and 230,233.95 is: 317,717.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,414.23 : 540,142.70 = 230,233.95 : x
  2. Step 2: Convert to fraction form
    391,414.23/540,142.70 = 230,233.95/x
  3. Step 3: Cross multiply
    391,414.23x = 540,142.70 × 230,233.95
  4. Step 4: Simplify right side
    391,414.23x = 124,359,186,233.50
  5. Step 5: Solve for x
    x = 124,359,186,233.50/391,414.23
  6. Step 6: Final answer
    x = 317,717.59

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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.