Home / 391,150.23-539,768.66-240,218.07

Finding the Fourth Proportional to 391,150.23, 539,768.66 and 240,218.07

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Solution

The fourth proportional to 391,150.23, 539,768.66 and 240,218.07 is: 331,489.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,150.23 : 539,768.66 = 240,218.07 : x
  2. Step 2: Convert to fraction form
    391,150.23/539,768.66 = 240,218.07/x
  3. Step 3: Cross multiply
    391,150.23x = 539,768.66 × 240,218.07
  4. Step 4: Simplify right side
    391,150.23x = 129,662,184,550.60
  5. Step 5: Solve for x
    x = 129,662,184,550.60/391,150.23
  6. Step 6: Final answer
    x = 331,489.48

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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.