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Finding the Fourth Proportional to 218,401, 327,603.30 and 60,641.74

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Solution

The fourth proportional to 218,401, 327,603.30 and 60,641.74 is: 90,963.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,401 : 327,603.30 = 60,641.74 : x
  2. Step 2: Convert to fraction form
    218,401/327,603.30 = 60,641.74/x
  3. Step 3: Cross multiply
    218,401x = 327,603.30 × 60,641.74
  4. Step 4: Simplify right side
    218,401x = 19,866,434,141.74
  5. Step 5: Solve for x
    x = 19,866,434,141.74/218,401
  6. Step 6: Final answer
    x = 90,963.11

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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.