Home / 320,387.11-479,705.24-230,519.63

Finding the Fourth Proportional to 320,387.11, 479,705.24 and 230,519.63

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Solution

The fourth proportional to 320,387.11, 479,705.24 and 230,519.63 is: 345,149.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,387.11 : 479,705.24 = 230,519.63 : x
  2. Step 2: Convert to fraction form
    320,387.11/479,705.24 = 230,519.63/x
  3. Step 3: Cross multiply
    320,387.11x = 479,705.24 × 230,519.63
  4. Step 4: Simplify right side
    320,387.11x = 110,581,475,587.34
  5. Step 5: Solve for x
    x = 110,581,475,587.34/320,387.11
  6. Step 6: Final answer
    x = 345,149.58

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1.5x scale

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.