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Finding the Fourth Proportional to 230,348.76, 345,304.74 and 80,491.65

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Solution

The fourth proportional to 230,348.76, 345,304.74 and 80,491.65 is: 120,661.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,348.76 : 345,304.74 = 80,491.65 : x
  2. Step 2: Convert to fraction form
    230,348.76/345,304.74 = 80,491.65/x
  3. Step 3: Cross multiply
    230,348.76x = 345,304.74 × 80,491.65
  4. Step 4: Simplify right side
    230,348.76x = 27,794,148,275.42
  5. Step 5: Solve for x
    x = 27,794,148,275.42/230,348.76
  6. Step 6: Final answer
    x = 120,661.16

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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.