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Finding the Fourth Proportional to 259,881.75, 358,636.83 and 140,649.75

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Solution

The fourth proportional to 259,881.75, 358,636.83 and 140,649.75 is: 194,096.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,881.75 : 358,636.83 = 140,649.75 : x
  2. Step 2: Convert to fraction form
    259,881.75/358,636.83 = 140,649.75/x
  3. Step 3: Cross multiply
    259,881.75x = 358,636.83 × 140,649.75
  4. Step 4: Simplify right side
    259,881.75x = 50,442,180,480.29
  5. Step 5: Solve for x
    x = 50,442,180,480.29/259,881.75
  6. Step 6: Final answer
    x = 194,096.66

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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.