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Finding the Fourth Proportional to 230,884.48, 318,605.52 and 128,919.52

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Solution

The fourth proportional to 230,884.48, 318,605.52 and 128,919.52 is: 177,900.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,884.48 : 318,605.52 = 128,919.52 : x
  2. Step 2: Convert to fraction form
    230,884.48/318,605.52 = 128,919.52/x
  3. Step 3: Cross multiply
    230,884.48x = 318,605.52 × 128,919.52
  4. Step 4: Simplify right side
    230,884.48x = 41,074,470,707.75
  5. Step 5: Solve for x
    x = 41,074,470,707.75/230,884.48
  6. Step 6: Final answer
    x = 177,900.53

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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.