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Finding the Fourth Proportional to 541,165.75, 811,520.26 and 162,140.38

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Solution

The fourth proportional to 541,165.75, 811,520.26 and 162,140.38 is: 243,142.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,165.75 : 811,520.26 = 162,140.38 : x
  2. Step 2: Convert to fraction form
    541,165.75/811,520.26 = 162,140.38/x
  3. Step 3: Cross multiply
    541,165.75x = 811,520.26 × 162,140.38
  4. Step 4: Simplify right side
    541,165.75x = 131,580,200,899.95
  5. Step 5: Solve for x
    x = 131,580,200,899.95/541,165.75
  6. Step 6: Final answer
    x = 243,142.15

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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.