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Finding the Fourth Proportional to 216,807.73, 325,024.71 and 83,781.33

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Solution

The fourth proportional to 216,807.73, 325,024.71 and 83,781.33 is: 125,599.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,807.73 : 325,024.71 = 83,781.33 : x
  2. Step 2: Convert to fraction form
    216,807.73/325,024.71 = 83,781.33/x
  3. Step 3: Cross multiply
    216,807.73x = 325,024.71 × 83,781.33
  4. Step 4: Simplify right side
    216,807.73x = 27,231,002,486.66
  5. Step 5: Solve for x
    x = 27,231,002,486.66/216,807.73
  6. Step 6: Final answer
    x = 125,599.78

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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.