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Finding the Fourth Proportional to 538,860.75, 808,428.42 and 159,795.33

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Solution

The fourth proportional to 538,860.75, 808,428.42 and 159,795.33 is: 239,733.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,860.75 : 808,428.42 = 159,795.33 : x
  2. Step 2: Convert to fraction form
    538,860.75/808,428.42 = 159,795.33/x
  3. Step 3: Cross multiply
    538,860.75x = 808,428.42 × 159,795.33
  4. Step 4: Simplify right side
    538,860.75x = 129,183,086,155.28
  5. Step 5: Solve for x
    x = 129,183,086,155.28/538,860.75
  6. Step 6: Final answer
    x = 239,733.71

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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.