Home / 289,575.35-399,581.73-168,691.35

Finding the Fourth Proportional to 289,575.35, 399,581.73 and 168,691.35

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Solution

The fourth proportional to 289,575.35, 399,581.73 and 168,691.35 is: 232,775.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,575.35 : 399,581.73 = 168,691.35 : x
  2. Step 2: Convert to fraction form
    289,575.35/399,581.73 = 168,691.35/x
  3. Step 3: Cross multiply
    289,575.35x = 399,581.73 × 168,691.35
  4. Step 4: Simplify right side
    289,575.35x = 67,405,981,469.04
  5. Step 5: Solve for x
    x = 67,405,981,469.04/289,575.35
  6. Step 6: Final answer
    x = 232,775.28

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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.