Home / 330,691.66-495,984.38-90,749.52

Finding the Fourth Proportional to 330,691.66, 495,984.38 and 90,749.52

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Solution

The fourth proportional to 330,691.66, 495,984.38 and 90,749.52 is: 136,109.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,691.66 : 495,984.38 = 90,749.52 : x
  2. Step 2: Convert to fraction form
    330,691.66/495,984.38 = 90,749.52/x
  3. Step 3: Cross multiply
    330,691.66x = 495,984.38 × 90,749.52
  4. Step 4: Simplify right side
    330,691.66x = 45,010,344,412.50
  5. Step 5: Solve for x
    x = 45,010,344,412.50/330,691.66
  6. Step 6: Final answer
    x = 136,109.71

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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.