Home / 278,458.26-384,180.93-157,587.54

Finding the Fourth Proportional to 278,458.26, 384,180.93 and 157,587.54

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Solution

The fourth proportional to 278,458.26, 384,180.93 and 157,587.54 is: 217,419.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,458.26 : 384,180.93 = 157,587.54 : x
  2. Step 2: Convert to fraction form
    278,458.26/384,180.93 = 157,587.54/x
  3. Step 3: Cross multiply
    278,458.26x = 384,180.93 × 157,587.54
  4. Step 4: Simplify right side
    278,458.26x = 60,542,127,673.61
  5. Step 5: Solve for x
    x = 60,542,127,673.61/278,458.26
  6. Step 6: Final answer
    x = 217,419.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.