Home / 218,997.44-328,070.09-143,889.38

Finding the Fourth Proportional to 218,997.44, 328,070.09 and 143,889.38

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Solution

The fourth proportional to 218,997.44, 328,070.09 and 143,889.38 is: 215,554.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,997.44 : 328,070.09 = 143,889.38 : x
  2. Step 2: Convert to fraction form
    218,997.44/328,070.09 = 143,889.38/x
  3. Step 3: Cross multiply
    218,997.44x = 328,070.09 × 143,889.38
  4. Step 4: Simplify right side
    218,997.44x = 47,205,801,386.19
  5. Step 5: Solve for x
    x = 47,205,801,386.19/218,997.44
  6. Step 6: Final answer
    x = 215,554.13

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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.