Home / 391,834.46-540,731.07-228,497.55

Finding the Fourth Proportional to 391,834.46, 540,731.07 and 228,497.55

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Solution

The fourth proportional to 391,834.46, 540,731.07 and 228,497.55 is: 315,326.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,834.46 : 540,731.07 = 228,497.55 : x
  2. Step 2: Convert to fraction form
    391,834.46/540,731.07 = 228,497.55/x
  3. Step 3: Cross multiply
    391,834.46x = 540,731.07 × 228,497.55
  4. Step 4: Simplify right side
    391,834.46x = 123,555,724,703.88
  5. Step 5: Solve for x
    x = 123,555,724,703.88/391,834.46
  6. Step 6: Final answer
    x = 315,326.34

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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.