Home / 278,250.12-383,566.46-217,715.58

Finding the Fourth Proportional to 278,250.12, 383,566.46 and 217,715.58

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Solution

The fourth proportional to 278,250.12, 383,566.46 and 217,715.58 is: 300,119.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,250.12 : 383,566.46 = 217,715.58 : x
  2. Step 2: Convert to fraction form
    278,250.12/383,566.46 = 217,715.58/x
  3. Step 3: Cross multiply
    278,250.12x = 383,566.46 × 217,715.58
  4. Step 4: Simplify right side
    278,250.12x = 83,508,393,218.87
  5. Step 5: Solve for x
    x = 83,508,393,218.87/278,250.12
  6. Step 6: Final answer
    x = 300,119.88

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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.