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Finding the Fourth Proportional to 263,510.92, 363,642.05 and 142,649.56

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Solution

The fourth proportional to 263,510.92, 363,642.05 and 142,649.56 is: 196,854.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,510.92 : 363,642.05 = 142,649.56 : x
  2. Step 2: Convert to fraction form
    263,510.92/363,642.05 = 142,649.56/x
  3. Step 3: Cross multiply
    263,510.92x = 363,642.05 × 142,649.56
  4. Step 4: Simplify right side
    263,510.92x = 51,873,377,877.52
  5. Step 5: Solve for x
    x = 51,873,377,877.52/263,510.92
  6. Step 6: Final answer
    x = 196,854.76

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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.