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Finding the Fourth Proportional to 270,500.64, 405,604.08 and 80,934.72

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Solution

The fourth proportional to 270,500.64, 405,604.08 and 80,934.72 is: 121,358.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,500.64 : 405,604.08 = 80,934.72 : x
  2. Step 2: Convert to fraction form
    270,500.64/405,604.08 = 80,934.72/x
  3. Step 3: Cross multiply
    270,500.64x = 405,604.08 × 80,934.72
  4. Step 4: Simplify right side
    270,500.64x = 32,827,452,645.66
  5. Step 5: Solve for x
    x = 32,827,452,645.66/270,500.64
  6. Step 6: Final answer
    x = 121,358.13

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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.