Home / 338,872.80-508,145.04-102,171.36

Finding the Fourth Proportional to 338,872.80, 508,145.04 and 102,171.36

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Solution

The fourth proportional to 338,872.80, 508,145.04 and 102,171.36 is: 153,207.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,872.80 : 508,145.04 = 102,171.36 : x
  2. Step 2: Convert to fraction form
    338,872.80/508,145.04 = 102,171.36/x
  3. Step 3: Cross multiply
    338,872.80x = 508,145.04 × 102,171.36
  4. Step 4: Simplify right side
    338,872.80x = 51,917,869,814.05
  5. Step 5: Solve for x
    x = 51,917,869,814.05/338,872.80
  6. Step 6: Final answer
    x = 153,207.55

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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.