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Finding the Fourth Proportional to 230,346.76, 345,301.74 and 80,489.65

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Solution

The fourth proportional to 230,346.76, 345,301.74 and 80,489.65 is: 120,658.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,346.76 : 345,301.74 = 80,489.65 : x
  2. Step 2: Convert to fraction form
    230,346.76/345,301.74 = 80,489.65/x
  3. Step 3: Cross multiply
    230,346.76x = 345,301.74 × 80,489.65
  4. Step 4: Simplify right side
    230,346.76x = 27,793,216,196.99
  5. Step 5: Solve for x
    x = 27,793,216,196.99/230,346.76
  6. Step 6: Final answer
    x = 120,658.16

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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.