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Finding the Fourth Proportional to 154,302.20, 231,353.40 and 65,531.60

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Solution

The fourth proportional to 154,302.20, 231,353.40 and 65,531.60 is: 98,254.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,302.20 : 231,353.40 = 65,531.60 : x
  2. Step 2: Convert to fraction form
    154,302.20/231,353.40 = 65,531.60/x
  3. Step 3: Cross multiply
    154,302.20x = 231,353.40 × 65,531.60
  4. Step 4: Simplify right side
    154,302.20x = 15,160,958,467.44
  5. Step 5: Solve for x
    x = 15,160,958,467.44/154,302.20
  6. Step 6: Final answer
    x = 98,254.97

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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.