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Finding the Fourth Proportional to 202,008.68, 278,773.79 and 111,367.84

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Solution

The fourth proportional to 202,008.68, 278,773.79 and 111,367.84 is: 153,688.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,008.68 : 278,773.79 = 111,367.84 : x
  2. Step 2: Convert to fraction form
    202,008.68/278,773.79 = 111,367.84/x
  3. Step 3: Cross multiply
    202,008.68x = 278,773.79 × 111,367.84
  4. Step 4: Simplify right side
    202,008.68x = 31,046,433,325.79
  5. Step 5: Solve for x
    x = 31,046,433,325.79/202,008.68
  6. Step 6: Final answer
    x = 153,688.61

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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.