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Finding the Fourth Proportional to 211,806.75, 292,294.11 and 115,010.73

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Solution

The fourth proportional to 211,806.75, 292,294.11 and 115,010.73 is: 158,715.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,806.75 : 292,294.11 = 115,010.73 : x
  2. Step 2: Convert to fraction form
    211,806.75/292,294.11 = 115,010.73/x
  3. Step 3: Cross multiply
    211,806.75x = 292,294.11 × 115,010.73
  4. Step 4: Simplify right side
    211,806.75x = 33,616,958,965.80
  5. Step 5: Solve for x
    x = 33,616,958,965.80/211,806.75
  6. Step 6: Final answer
    x = 158,715.24

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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.