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Finding the Fourth Proportional to 202,379.28, 279,262.20 and 117,479.76

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Solution

The fourth proportional to 202,379.28, 279,262.20 and 117,479.76 is: 162,109.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,379.28 : 279,262.20 = 117,479.76 : x
  2. Step 2: Convert to fraction form
    202,379.28/279,262.20 = 117,479.76/x
  3. Step 3: Cross multiply
    202,379.28x = 279,262.20 × 117,479.76
  4. Step 4: Simplify right side
    202,379.28x = 32,807,656,233.07
  5. Step 5: Solve for x
    x = 32,807,656,233.07/202,379.28
  6. Step 6: Final answer
    x = 162,109.76

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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.