Home / 276,513.20-414,769.80-89,543.60

Finding the Fourth Proportional to 276,513.20, 414,769.80 and 89,543.60

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Solution

The fourth proportional to 276,513.20, 414,769.80 and 89,543.60 is: 134,315.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,513.20 : 414,769.80 = 89,543.60 : x
  2. Step 2: Convert to fraction form
    276,513.20/414,769.80 = 89,543.60/x
  3. Step 3: Cross multiply
    276,513.20x = 414,769.80 × 89,543.60
  4. Step 4: Simplify right side
    276,513.20x = 37,139,981,063.28
  5. Step 5: Solve for x
    x = 37,139,981,063.28/276,513.20
  6. Step 6: Final answer
    x = 134,315.40

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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.