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Finding the Fourth Proportional to 529.36, 793.72 and 236.81

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Solution

The fourth proportional to 529.36, 793.72 and 236.81 is: 355.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    529.36 : 793.72 = 236.81 : x
  2. Step 2: Convert to fraction form
    529.36/793.72 = 236.81/x
  3. Step 3: Cross multiply
    529.36x = 793.72 × 236.81
  4. Step 4: Simplify right side
    529.36x = 187,957.59
  5. Step 5: Solve for x
    x = 187,957.59/529.36
  6. Step 6: Final answer
    x = 355.07

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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.