Home / 320,125.30-480,046.50-170,330.08

Finding the Fourth Proportional to 320,125.30, 480,046.50 and 170,330.08

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Solution

The fourth proportional to 320,125.30, 480,046.50 and 170,330.08 is: 255,419.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,125.30 : 480,046.50 = 170,330.08 : x
  2. Step 2: Convert to fraction form
    320,125.30/480,046.50 = 170,330.08/x
  3. Step 3: Cross multiply
    320,125.30x = 480,046.50 × 170,330.08
  4. Step 4: Simplify right side
    320,125.30x = 81,766,358,748.72
  5. Step 5: Solve for x
    x = 81,766,358,748.72/320,125.30
  6. Step 6: Final answer
    x = 255,419.86

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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.