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Finding the Fourth Proportional to 154,272.60, 231,408.90 and 94,915.80

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Solution

The fourth proportional to 154,272.60, 231,408.90 and 94,915.80 is: 142,373.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,272.60 : 231,408.90 = 94,915.80 : x
  2. Step 2: Convert to fraction form
    154,272.60/231,408.90 = 94,915.80/x
  3. Step 3: Cross multiply
    154,272.60x = 231,408.90 × 94,915.80
  4. Step 4: Simplify right side
    154,272.60x = 21,964,360,870.62
  5. Step 5: Solve for x
    x = 21,964,360,870.62/154,272.60
  6. Step 6: Final answer
    x = 142,373.70

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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.