Home / 217,738.15-300,470.93-122,248.87

Finding the Fourth Proportional to 217,738.15, 300,470.93 and 122,248.87

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Solution

The fourth proportional to 217,738.15, 300,470.93 and 122,248.87 is: 168,699.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,738.15 : 300,470.93 = 122,248.87 : x
  2. Step 2: Convert to fraction form
    217,738.15/300,470.93 = 122,248.87/x
  3. Step 3: Cross multiply
    217,738.15x = 300,470.93 × 122,248.87
  4. Step 4: Simplify right side
    217,738.15x = 36,732,231,660.35
  5. Step 5: Solve for x
    x = 36,732,231,660.35/217,738.15
  6. Step 6: Final answer
    x = 168,699.11

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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.