Home / 485,088.72-727,660.08-148,180.56

Finding the Fourth Proportional to 485,088.72, 727,660.08 and 148,180.56

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Solution

The fourth proportional to 485,088.72, 727,660.08 and 148,180.56 is: 222,279.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,088.72 : 727,660.08 = 148,180.56 : x
  2. Step 2: Convert to fraction form
    485,088.72/727,660.08 = 148,180.56/x
  3. Step 3: Cross multiply
    485,088.72x = 727,660.08 × 148,180.56
  4. Step 4: Simplify right side
    485,088.72x = 107,825,078,144.05
  5. Step 5: Solve for x
    x = 107,825,078,144.05/485,088.72
  6. Step 6: Final answer
    x = 222,279.09

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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.