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Finding the Fourth Proportional to 271,518.72, 407,407.68 and 131,199.36

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Solution

The fourth proportional to 271,518.72, 407,407.68 and 131,199.36 is: 196,861.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,518.72 : 407,407.68 = 131,199.36 : x
  2. Step 2: Convert to fraction form
    271,518.72/407,407.68 = 131,199.36/x
  3. Step 3: Cross multiply
    271,518.72x = 407,407.68 × 131,199.36
  4. Step 4: Simplify right side
    271,518.72x = 53,451,626,875.08
  5. Step 5: Solve for x
    x = 53,451,626,875.08/271,518.72
  6. Step 6: Final answer
    x = 196,861.66

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1.5x scale

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.