Home / 278,644.08-417,968-68,282.04

Finding the Fourth Proportional to 278,644.08, 417,968 and 68,282.04

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Solution

The fourth proportional to 278,644.08, 417,968 and 68,282.04 is: 102,423.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,644.08 : 417,968 = 68,282.04 : x
  2. Step 2: Convert to fraction form
    278,644.08/417,968 = 68,282.04/x
  3. Step 3: Cross multiply
    278,644.08x = 417,968 × 68,282.04
  4. Step 4: Simplify right side
    278,644.08x = 28,539,707,694.72
  5. Step 5: Solve for x
    x = 28,539,707,694.72/278,644.08
  6. Step 6: Final answer
    x = 102,423.52

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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.