Home / 263,753.40-363,979.18-142,897.70

Finding the Fourth Proportional to 263,753.40, 363,979.18 and 142,897.70

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Solution

The fourth proportional to 263,753.40, 363,979.18 and 142,897.70 is: 197,198.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,753.40 : 363,979.18 = 142,897.70 : x
  2. Step 2: Convert to fraction form
    263,753.40/363,979.18 = 142,897.70/x
  3. Step 3: Cross multiply
    263,753.40x = 363,979.18 × 142,897.70
  4. Step 4: Simplify right side
    263,753.40x = 52,011,787,669.89
  5. Step 5: Solve for x
    x = 52,011,787,669.89/263,753.40
  6. Step 6: Final answer
    x = 197,198.55

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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.