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Finding the Fourth Proportional to 185,367.30, 278,310.15 and 115,383.30

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Solution

The fourth proportional to 185,367.30, 278,310.15 and 115,383.30 is: 173,236.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,367.30 : 278,310.15 = 115,383.30 : x
  2. Step 2: Convert to fraction form
    185,367.30/278,310.15 = 115,383.30/x
  3. Step 3: Cross multiply
    185,367.30x = 278,310.15 × 115,383.30
  4. Step 4: Simplify right side
    185,367.30x = 32,112,343,530.50
  5. Step 5: Solve for x
    x = 32,112,343,530.50/185,367.30
  6. Step 6: Final answer
    x = 173,236.29

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1.5x scale

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.