Home / 278,522.20-417,783.30-248,195.80

Finding the Fourth Proportional to 278,522.20, 417,783.30 and 248,195.80

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Solution

The fourth proportional to 278,522.20, 417,783.30 and 248,195.80 is: 372,293.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,522.20 : 417,783.30 = 248,195.80 : x
  2. Step 2: Convert to fraction form
    278,522.20/417,783.30 = 248,195.80/x
  3. Step 3: Cross multiply
    278,522.20x = 417,783.30 × 248,195.80
  4. Step 4: Simplify right side
    278,522.20x = 103,692,060,370.14
  5. Step 5: Solve for x
    x = 103,692,060,370.14/278,522.20
  6. Step 6: Final answer
    x = 372,293.70

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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.