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Finding the Fourth Proportional to 202,897.80, 279,948.60 and 131,191.52

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Solution

The fourth proportional to 202,897.80, 279,948.60 and 131,191.52 is: 181,011.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,897.80 : 279,948.60 = 131,191.52 : x
  2. Step 2: Convert to fraction form
    202,897.80/279,948.60 = 131,191.52/x
  3. Step 3: Cross multiply
    202,897.80x = 279,948.60 × 131,191.52
  4. Step 4: Simplify right side
    202,897.80x = 36,726,882,355.87
  5. Step 5: Solve for x
    x = 36,726,882,355.87/202,897.80
  6. Step 6: Final answer
    x = 181,011.73

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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.