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Finding the Fourth Proportional to 227,062.08, 340,242.72 and 143,781.12

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Solution

The fourth proportional to 227,062.08, 340,242.72 and 143,781.12 is: 215,449.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,062.08 : 340,242.72 = 143,781.12 : x
  2. Step 2: Convert to fraction form
    227,062.08/340,242.72 = 143,781.12/x
  3. Step 3: Cross multiply
    227,062.08x = 340,242.72 × 143,781.12
  4. Step 4: Simplify right side
    227,062.08x = 48,920,479,353.45
  5. Step 5: Solve for x
    x = 48,920,479,353.45/227,062.08
  6. Step 6: Final answer
    x = 215,449.80

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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.