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Finding the Fourth Proportional to 538,778.25, 808,171.43 and 239,178.29

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Solution

The fourth proportional to 538,778.25, 808,171.43 and 239,178.29 is: 358,769.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,778.25 : 808,171.43 = 239,178.29 : x
  2. Step 2: Convert to fraction form
    538,778.25/808,171.43 = 239,178.29/x
  3. Step 3: Cross multiply
    538,778.25x = 808,171.43 × 239,178.29
  4. Step 4: Simplify right side
    538,778.25x = 193,297,055,417.51
  5. Step 5: Solve for x
    x = 193,297,055,417.51/538,778.25
  6. Step 6: Final answer
    x = 358,769.23

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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.