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Finding the Fourth Proportional to 194,380.60, 291,570.90 and 69,705.40

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Solution

The fourth proportional to 194,380.60, 291,570.90 and 69,705.40 is: 104,558.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,380.60 : 291,570.90 = 69,705.40 : x
  2. Step 2: Convert to fraction form
    194,380.60/291,570.90 = 69,705.40/x
  3. Step 3: Cross multiply
    194,380.60x = 291,570.90 × 69,705.40
  4. Step 4: Simplify right side
    194,380.60x = 20,324,066,212.86
  5. Step 5: Solve for x
    x = 20,324,066,212.86/194,380.60
  6. Step 6: Final answer
    x = 104,558.10

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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.