Home / 283,534.20-426,176.10-278,285.40

Finding the Fourth Proportional to 283,534.20, 426,176.10 and 278,285.40

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Solution

The fourth proportional to 283,534.20, 426,176.10 and 278,285.40 is: 418,286.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,534.20 : 426,176.10 = 278,285.40 : x
  2. Step 2: Convert to fraction form
    283,534.20/426,176.10 = 278,285.40/x
  3. Step 3: Cross multiply
    283,534.20x = 426,176.10 × 278,285.40
  4. Step 4: Simplify right side
    283,534.20x = 118,598,586,458.94
  5. Step 5: Solve for x
    x = 118,598,586,458.94/283,534.20
  6. Step 6: Final answer
    x = 418,286.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.