Home / 318,062.52-438,929.62-172,868.28

Finding the Fourth Proportional to 318,062.52, 438,929.62 and 172,868.28

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Solution

The fourth proportional to 318,062.52, 438,929.62 and 172,868.28 is: 238,560.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,062.52 : 438,929.62 = 172,868.28 : x
  2. Step 2: Convert to fraction form
    318,062.52/438,929.62 = 172,868.28/x
  3. Step 3: Cross multiply
    318,062.52x = 438,929.62 × 172,868.28
  4. Step 4: Simplify right side
    318,062.52x = 75,877,008,450.45
  5. Step 5: Solve for x
    x = 75,877,008,450.45/318,062.52
  6. Step 6: Final answer
    x = 238,560.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.