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Finding the Fourth Proportional to 265,344.93, 398,180.57 and 105,392.88

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Solution

The fourth proportional to 265,344.93, 398,180.57 and 105,392.88 is: 158,154.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,344.93 : 398,180.57 = 105,392.88 : x
  2. Step 2: Convert to fraction form
    265,344.93/398,180.57 = 105,392.88/x
  3. Step 3: Cross multiply
    265,344.93x = 398,180.57 × 105,392.88
  4. Step 4: Simplify right side
    265,344.93x = 41,965,396,505.38
  5. Step 5: Solve for x
    x = 41,965,396,505.38/265,344.93
  6. Step 6: Final answer
    x = 158,154.13

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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.