Home / 217,719.48-300,400.30-127,023.68

Finding the Fourth Proportional to 217,719.48, 300,400.30 and 127,023.68

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Solution

The fourth proportional to 217,719.48, 300,400.30 and 127,023.68 is: 175,262.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,719.48 : 300,400.30 = 127,023.68 : x
  2. Step 2: Convert to fraction form
    217,719.48/300,400.30 = 127,023.68/x
  3. Step 3: Cross multiply
    217,719.48x = 300,400.30 × 127,023.68
  4. Step 4: Simplify right side
    217,719.48x = 38,157,951,579.10
  5. Step 5: Solve for x
    x = 38,157,951,579.10/217,719.48
  6. Step 6: Final answer
    x = 175,262.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.