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Finding the Fourth Proportional to 154,420.70, 231,641.85 and 60,914.30

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Solution

The fourth proportional to 154,420.70, 231,641.85 and 60,914.30 is: 91,375.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,420.70 : 231,641.85 = 60,914.30 : x
  2. Step 2: Convert to fraction form
    154,420.70/231,641.85 = 60,914.30/x
  3. Step 3: Cross multiply
    154,420.70x = 231,641.85 × 60,914.30
  4. Step 4: Simplify right side
    154,420.70x = 14,110,301,143.46
  5. Step 5: Solve for x
    x = 14,110,301,143.46/154,420.70
  6. Step 6: Final answer
    x = 91,375.71

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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.