Home / 218,604.09-328,001.51-76,551.32

Finding the Fourth Proportional to 218,604.09, 328,001.51 and 76,551.32

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Solution

The fourth proportional to 218,604.09, 328,001.51 and 76,551.32 is: 114,860.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,604.09 : 328,001.51 = 76,551.32 : x
  2. Step 2: Convert to fraction form
    218,604.09/328,001.51 = 76,551.32/x
  3. Step 3: Cross multiply
    218,604.09x = 328,001.51 × 76,551.32
  4. Step 4: Simplify right side
    218,604.09x = 25,108,948,046.80
  5. Step 5: Solve for x
    x = 25,108,948,046.80/218,604.09
  6. Step 6: Final answer
    x = 114,860.38

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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.