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Finding the Fourth Proportional to 203,010.66, 280,147.56 and 112,366.80

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Solution

The fourth proportional to 203,010.66, 280,147.56 and 112,366.80 is: 155,062.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,010.66 : 280,147.56 = 112,366.80 : x
  2. Step 2: Convert to fraction form
    203,010.66/280,147.56 = 112,366.80/x
  3. Step 3: Cross multiply
    203,010.66x = 280,147.56 × 112,366.80
  4. Step 4: Simplify right side
    203,010.66x = 31,479,284,845.01
  5. Step 5: Solve for x
    x = 31,479,284,845.01/203,010.66
  6. Step 6: Final answer
    x = 155,062.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.