Home / 485,213.16-727,930.44-148,301.70

Finding the Fourth Proportional to 485,213.16, 727,930.44 and 148,301.70

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Solution

The fourth proportional to 485,213.16, 727,930.44 and 148,301.70 is: 222,486.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,213.16 : 727,930.44 = 148,301.70 : x
  2. Step 2: Convert to fraction form
    485,213.16/727,930.44 = 148,301.70/x
  3. Step 3: Cross multiply
    485,213.16x = 727,930.44 × 148,301.70
  4. Step 4: Simplify right side
    485,213.16x = 107,953,321,733.75
  5. Step 5: Solve for x
    x = 107,953,321,733.75/485,213.16
  6. Step 6: Final answer
    x = 222,486.38

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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.