Home / 218,718.30-328,077.45-197,291.10

Finding the Fourth Proportional to 218,718.30, 328,077.45 and 197,291.10

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Solution

The fourth proportional to 218,718.30, 328,077.45 and 197,291.10 is: 295,936.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,718.30 : 328,077.45 = 197,291.10 : x
  2. Step 2: Convert to fraction form
    218,718.30/328,077.45 = 197,291.10/x
  3. Step 3: Cross multiply
    218,718.30x = 328,077.45 × 197,291.10
  4. Step 4: Simplify right side
    218,718.30x = 64,726,760,995.70
  5. Step 5: Solve for x
    x = 64,726,760,995.70/218,718.30
  6. Step 6: Final answer
    x = 295,936.65

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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.