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Finding the Fourth Proportional to 230,820.80, 346,279.80 and 73,065.20

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Solution

The fourth proportional to 230,820.80, 346,279.80 and 73,065.20 is: 109,613.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,820.80 : 346,279.80 = 73,065.20 : x
  2. Step 2: Convert to fraction form
    230,820.80/346,279.80 = 73,065.20/x
  3. Step 3: Cross multiply
    230,820.80x = 346,279.80 × 73,065.20
  4. Step 4: Simplify right side
    230,820.80x = 25,301,002,842.96
  5. Step 5: Solve for x
    x = 25,301,002,842.96/230,820.80
  6. Step 6: Final answer
    x = 109,613.18

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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.