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Finding the Fourth Proportional to 332,161.90, 498,242.85 and 285,505.90

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Solution

The fourth proportional to 332,161.90, 498,242.85 and 285,505.90 is: 428,258.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,161.90 : 498,242.85 = 285,505.90 : x
  2. Step 2: Convert to fraction form
    332,161.90/498,242.85 = 285,505.90/x
  3. Step 3: Cross multiply
    332,161.90x = 498,242.85 × 285,505.90
  4. Step 4: Simplify right side
    332,161.90x = 142,251,273,307.82
  5. Step 5: Solve for x
    x = 142,251,273,307.82/332,161.90
  6. Step 6: Final answer
    x = 428,258.85

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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.