Home / 320,691.24-480,894.66-170,903.61

Finding the Fourth Proportional to 320,691.24, 480,894.66 and 170,903.61

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Solution

The fourth proportional to 320,691.24, 480,894.66 and 170,903.61 is: 256,279.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,691.24 : 480,894.66 = 170,903.61 : x
  2. Step 2: Convert to fraction form
    320,691.24/480,894.66 = 170,903.61/x
  3. Step 3: Cross multiply
    320,691.24x = 480,894.66 × 170,903.61
  4. Step 4: Simplify right side
    320,691.24x = 82,186,633,423.72
  5. Step 5: Solve for x
    x = 82,186,633,423.72/320,691.24
  6. Step 6: Final answer
    x = 256,279.63

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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.