Home / 218,816.36-328,279.89-61,044.74

Finding the Fourth Proportional to 218,816.36, 328,279.89 and 61,044.74

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Solution

The fourth proportional to 218,816.36, 328,279.89 and 61,044.74 is: 91,582.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,816.36 : 328,279.89 = 61,044.74 : x
  2. Step 2: Convert to fraction form
    218,816.36/328,279.89 = 61,044.74/x
  3. Step 3: Cross multiply
    218,816.36x = 328,279.89 × 61,044.74
  4. Step 4: Simplify right side
    218,816.36x = 20,039,760,532.28
  5. Step 5: Solve for x
    x = 20,039,760,532.28/218,816.36
  6. Step 6: Final answer
    x = 91,582.55

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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.