Home / 278,851.20-417,815.10-160,315.80

Finding the Fourth Proportional to 278,851.20, 417,815.10 and 160,315.80

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Solution

The fourth proportional to 278,851.20, 417,815.10 and 160,315.80 is: 240,208.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,851.20 : 417,815.10 = 160,315.80 : x
  2. Step 2: Convert to fraction form
    278,851.20/417,815.10 = 160,315.80/x
  3. Step 3: Cross multiply
    278,851.20x = 417,815.10 × 160,315.80
  4. Step 4: Simplify right side
    278,851.20x = 66,982,362,008.58
  5. Step 5: Solve for x
    x = 66,982,362,008.58/278,851.20
  6. Step 6: Final answer
    x = 240,208.26

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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.