Home / 278,619.30-417,841.43-118,693.55

Finding the Fourth Proportional to 278,619.30, 417,841.43 and 118,693.55

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Solution

The fourth proportional to 278,619.30, 417,841.43 and 118,693.55 is: 178,003.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,619.30 : 417,841.43 = 118,693.55 : x
  2. Step 2: Convert to fraction form
    278,619.30/417,841.43 = 118,693.55/x
  3. Step 3: Cross multiply
    278,619.30x = 417,841.43 × 118,693.55
  4. Step 4: Simplify right side
    278,619.30x = 49,595,083,114.91
  5. Step 5: Solve for x
    x = 49,595,083,114.91/278,619.30
  6. Step 6: Final answer
    x = 178,003.04

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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.