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Finding the Fourth Proportional to 243,626.26, 365,502.30 and 75,142.78

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Solution

The fourth proportional to 243,626.26, 365,502.30 and 75,142.78 is: 112,733.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,626.26 : 365,502.30 = 75,142.78 : x
  2. Step 2: Convert to fraction form
    243,626.26/365,502.30 = 75,142.78/x
  3. Step 3: Cross multiply
    243,626.26x = 365,502.30 × 75,142.78
  4. Step 4: Simplify right side
    243,626.26x = 27,464,858,918.39
  5. Step 5: Solve for x
    x = 27,464,858,918.39/243,626.26
  6. Step 6: Final answer
    x = 112,733.57

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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.