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Finding the Fourth Proportional to 230,960.73, 318,656.10 and 134,145.90

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Solution

The fourth proportional to 230,960.73, 318,656.10 and 134,145.90 is: 185,080.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,960.73 : 318,656.10 = 134,145.90 : x
  2. Step 2: Convert to fraction form
    230,960.73/318,656.10 = 134,145.90/x
  3. Step 3: Cross multiply
    230,960.73x = 318,656.10 × 134,145.90
  4. Step 4: Simplify right side
    230,960.73x = 42,746,409,324.99
  5. Step 5: Solve for x
    x = 42,746,409,324.99/230,960.73
  6. Step 6: Final answer
    x = 185,080.85

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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.