Home / 278,557.67-417,831.75-89,016.66

Finding the Fourth Proportional to 278,557.67, 417,831.75 and 89,016.66

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Solution

The fourth proportional to 278,557.67, 417,831.75 and 89,016.66 is: 133,523.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,557.67 : 417,831.75 = 89,016.66 : x
  2. Step 2: Convert to fraction form
    278,557.67/417,831.75 = 89,016.66/x
  3. Step 3: Cross multiply
    278,557.67x = 417,831.75 × 89,016.66
  4. Step 4: Simplify right side
    278,557.67x = 37,193,986,826.96
  5. Step 5: Solve for x
    x = 37,193,986,826.96/278,557.67
  6. Step 6: Final answer
    x = 133,523.47

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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.