Home / 278,261.72-417,310.50-118,337.35

Finding the Fourth Proportional to 278,261.72, 417,310.50 and 118,337.35

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Solution

The fourth proportional to 278,261.72, 417,310.50 and 118,337.35 is: 177,471.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,261.72 : 417,310.50 = 118,337.35 : x
  2. Step 2: Convert to fraction form
    278,261.72/417,310.50 = 118,337.35/x
  3. Step 3: Cross multiply
    278,261.72x = 417,310.50 × 118,337.35
  4. Step 4: Simplify right side
    278,261.72x = 49,383,418,697.18
  5. Step 5: Solve for x
    x = 49,383,418,697.18/278,261.72
  6. Step 6: Final answer
    x = 177,471.12

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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.