Home / 212,949.18-293,600.07-140,340.78

Finding the Fourth Proportional to 212,949.18, 293,600.07 and 140,340.78

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Solution

The fourth proportional to 212,949.18, 293,600.07 and 140,340.78 is: 193,492.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,949.18 : 293,600.07 = 140,340.78 : x
  2. Step 2: Convert to fraction form
    212,949.18/293,600.07 = 140,340.78/x
  3. Step 3: Cross multiply
    212,949.18x = 293,600.07 × 140,340.78
  4. Step 4: Simplify right side
    212,949.18x = 41,204,062,831.85
  5. Step 5: Solve for x
    x = 41,204,062,831.85/212,949.18
  6. Step 6: Final answer
    x = 193,492.47

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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.