Home / 218,966.24-302,183.77-123,470.89

Finding the Fourth Proportional to 218,966.24, 302,183.77 and 123,470.89

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Solution

The fourth proportional to 218,966.24, 302,183.77 and 123,470.89 is: 170,395.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,966.24 : 302,183.77 = 123,470.89 : x
  2. Step 2: Convert to fraction form
    218,966.24/302,183.77 = 123,470.89/x
  3. Step 3: Cross multiply
    218,966.24x = 302,183.77 × 123,470.89
  4. Step 4: Simplify right side
    218,966.24x = 37,310,897,961.32
  5. Step 5: Solve for x
    x = 37,310,897,961.32/218,966.24
  6. Step 6: Final answer
    x = 170,395.66

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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.