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Finding the Fourth Proportional to 263,298.54, 363,350.88 and 142,439.54

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Solution

The fourth proportional to 263,298.54, 363,350.88 and 142,439.54 is: 196,565.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,298.54 : 363,350.88 = 142,439.54 : x
  2. Step 2: Convert to fraction form
    263,298.54/363,350.88 = 142,439.54/x
  3. Step 3: Cross multiply
    263,298.54x = 363,350.88 × 142,439.54
  4. Step 4: Simplify right side
    263,298.54x = 51,755,532,205.80
  5. Step 5: Solve for x
    x = 51,755,532,205.80/263,298.54
  6. Step 6: Final answer
    x = 196,565.97

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1.5x scale

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.