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Finding the Fourth Proportional to 538,163.60, 806,787.03 and 238,480.81

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Solution

The fourth proportional to 538,163.60, 806,787.03 and 238,480.81 is: 357,518.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,163.60 : 806,787.03 = 238,480.81 : x
  2. Step 2: Convert to fraction form
    538,163.60/806,787.03 = 238,480.81/x
  3. Step 3: Cross multiply
    538,163.60x = 806,787.03 × 238,480.81
  4. Step 4: Simplify right side
    538,163.60x = 192,403,223,289.23
  5. Step 5: Solve for x
    x = 192,403,223,289.23/538,163.60
  6. Step 6: Final answer
    x = 357,518.10

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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.