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Finding the Fourth Proportional to 194,577.60, 291,405.60 and 131,908.80

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Solution

The fourth proportional to 194,577.60, 291,405.60 and 131,908.80 is: 197,550.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,577.60 : 291,405.60 = 131,908.80 : x
  2. Step 2: Convert to fraction form
    194,577.60/291,405.60 = 131,908.80/x
  3. Step 3: Cross multiply
    194,577.60x = 291,405.60 × 131,908.80
  4. Step 4: Simplify right side
    194,577.60x = 38,438,963,009.28
  5. Step 5: Solve for x
    x = 38,438,963,009.28/194,577.60
  6. Step 6: Final answer
    x = 197,550.81

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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.