Home / 278,161.28-417,132.74-98,208.32

Finding the Fourth Proportional to 278,161.28, 417,132.74 and 98,208.32

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Solution

The fourth proportional to 278,161.28, 417,132.74 and 98,208.32 is: 147,273.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,161.28 : 417,132.74 = 98,208.32 : x
  2. Step 2: Convert to fraction form
    278,161.28/417,132.74 = 98,208.32/x
  3. Step 3: Cross multiply
    278,161.28x = 417,132.74 × 98,208.32
  4. Step 4: Simplify right side
    278,161.28x = 40,965,905,612.40
  5. Step 5: Solve for x
    x = 40,965,905,612.40/278,161.28
  6. Step 6: Final answer
    x = 147,273.93

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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.