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Finding the Fourth Proportional to 194,621.60, 291,471.60 and 131,952.80

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Solution

The fourth proportional to 194,621.60, 291,471.60 and 131,952.80 is: 197,616.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,621.60 : 291,471.60 = 131,952.80 : x
  2. Step 2: Convert to fraction form
    194,621.60/291,471.60 = 131,952.80/x
  3. Step 3: Cross multiply
    194,621.60x = 291,471.60 × 131,952.80
  4. Step 4: Simplify right side
    194,621.60x = 38,460,493,740.48
  5. Step 5: Solve for x
    x = 38,460,493,740.48/194,621.60
  6. Step 6: Final answer
    x = 197,616.78

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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.