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Finding the Fourth Proportional to 259,367.76, 389,085.63 and 101,575.71

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Solution

The fourth proportional to 259,367.76, 389,085.63 and 101,575.71 is: 152,376.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,367.76 : 389,085.63 = 101,575.71 : x
  2. Step 2: Convert to fraction form
    259,367.76/389,085.63 = 101,575.71/x
  3. Step 3: Cross multiply
    259,367.76x = 389,085.63 × 101,575.71
  4. Step 4: Simplify right side
    259,367.76x = 39,521,649,118.05
  5. Step 5: Solve for x
    x = 39,521,649,118.05/259,367.76
  6. Step 6: Final answer
    x = 152,376.88

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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.