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Finding the Fourth Proportional to 315,394.56, 435,179.52 and 181,232.64

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Solution

The fourth proportional to 315,394.56, 435,179.52 and 181,232.64 is: 250,063.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,394.56 : 435,179.52 = 181,232.64 : x
  2. Step 2: Convert to fraction form
    315,394.56/435,179.52 = 181,232.64/x
  3. Step 3: Cross multiply
    315,394.56x = 435,179.52 × 181,232.64
  4. Step 4: Simplify right side
    315,394.56x = 78,868,733,283.53
  5. Step 5: Solve for x
    x = 78,868,733,283.53/315,394.56
  6. Step 6: Final answer
    x = 250,063.71

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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.