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Finding the Fourth Proportional to 230,491.62, 318,138.66 and 150,139.62

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Solution

The fourth proportional to 230,491.62, 318,138.66 and 150,139.62 is: 207,231.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,491.62 : 318,138.66 = 150,139.62 : x
  2. Step 2: Convert to fraction form
    230,491.62/318,138.66 = 150,139.62/x
  3. Step 3: Cross multiply
    230,491.62x = 318,138.66 × 150,139.62
  4. Step 4: Simplify right side
    230,491.62x = 47,765,217,519.71
  5. Step 5: Solve for x
    x = 47,765,217,519.71/230,491.62
  6. Step 6: Final answer
    x = 207,231.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.