Home / 278,173.54-417,151.15-98,220.60

Finding the Fourth Proportional to 278,173.54, 417,151.15 and 98,220.60

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Solution

The fourth proportional to 278,173.54, 417,151.15 and 98,220.60 is: 147,292.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,173.54 : 417,151.15 = 98,220.60 : x
  2. Step 2: Convert to fraction form
    278,173.54/417,151.15 = 98,220.60/x
  3. Step 3: Cross multiply
    278,173.54x = 417,151.15 × 98,220.60
  4. Step 4: Simplify right side
    278,173.54x = 40,972,835,998.14
  5. Step 5: Solve for x
    x = 40,972,835,998.14/278,173.54
  6. Step 6: Final answer
    x = 147,292.36

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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.