Home / 218,823.14-328,234.73-69,168.56

Finding the Fourth Proportional to 218,823.14, 328,234.73 and 69,168.56

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Solution

The fourth proportional to 218,823.14, 328,234.73 and 69,168.56 is: 103,752.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,823.14 : 328,234.73 = 69,168.56 : x
  2. Step 2: Convert to fraction form
    218,823.14/328,234.73 = 69,168.56/x
  3. Step 3: Cross multiply
    218,823.14x = 328,234.73 × 69,168.56
  4. Step 4: Simplify right side
    218,823.14x = 22,703,521,629.07
  5. Step 5: Solve for x
    x = 22,703,521,629.07/218,823.14
  6. Step 6: Final answer
    x = 103,752.84

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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.