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Finding the Fourth Proportional to 194,617.60, 291,465.60 and 131,948.80

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Solution

The fourth proportional to 194,617.60, 291,465.60 and 131,948.80 is: 197,610.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,617.60 : 291,465.60 = 131,948.80 : x
  2. Step 2: Convert to fraction form
    194,617.60/291,465.60 = 131,948.80/x
  3. Step 3: Cross multiply
    194,617.60x = 291,465.60 × 131,948.80
  4. Step 4: Simplify right side
    194,617.60x = 38,458,536,161.28
  5. Step 5: Solve for x
    x = 38,458,536,161.28/194,617.60
  6. Step 6: Final answer
    x = 197,610.78

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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.