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Finding the Fourth Proportional to 218,132.10, 305,592.30 and 218,132.10

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Solution

The fourth proportional to 218,132.10, 305,592.30 and 218,132.10 is: 305,592.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,132.10 : 305,592.30 = 218,132.10 : x
  2. Step 2: Convert to fraction form
    218,132.10/305,592.30 = 218,132.10/x
  3. Step 3: Cross multiply
    218,132.10x = 305,592.30 × 218,132.10
  4. Step 4: Simplify right side
    218,132.10x = 66,659,490,142.83
  5. Step 5: Solve for x
    x = 66,659,490,142.83/218,132.10
  6. Step 6: Final answer
    x = 305,592.30

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.