Home / 391,426.11-540,158.85-230,291.53

Finding the Fourth Proportional to 391,426.11, 540,158.85 and 230,291.53

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Solution

The fourth proportional to 391,426.11, 540,158.85 and 230,291.53 is: 317,796.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,426.11 : 540,158.85 = 230,291.53 : x
  2. Step 2: Convert to fraction form
    391,426.11/540,158.85 = 230,291.53/x
  3. Step 3: Cross multiply
    391,426.11x = 540,158.85 × 230,291.53
  4. Step 4: Simplify right side
    391,426.11x = 124,394,006,659.14
  5. Step 5: Solve for x
    x = 124,394,006,659.14/391,426.11
  6. Step 6: Final answer
    x = 317,796.91

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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.