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Finding the Fourth Proportional to 172,903.30, 259,471.47 and 60,584.55

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Solution

The fourth proportional to 172,903.30, 259,471.47 and 60,584.55 is: 90,917.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,903.30 : 259,471.47 = 60,584.55 : x
  2. Step 2: Convert to fraction form
    172,903.30/259,471.47 = 60,584.55/x
  3. Step 3: Cross multiply
    172,903.30x = 259,471.47 × 60,584.55
  4. Step 4: Simplify right side
    172,903.30x = 15,719,962,247.79
  5. Step 5: Solve for x
    x = 15,719,962,247.79/172,903.30
  6. Step 6: Final answer
    x = 90,917.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.