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Finding the Fourth Proportional to 524.73, 787.38 and 342.48

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Solution

The fourth proportional to 524.73, 787.38 and 342.48 is: 513.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    524.73 : 787.38 = 342.48 : x
  2. Step 2: Convert to fraction form
    524.73/787.38 = 342.48/x
  3. Step 3: Cross multiply
    524.73x = 787.38 × 342.48
  4. Step 4: Simplify right side
    524.73x = 269,661.90
  5. Step 5: Solve for x
    x = 269,661.90/524.73
  6. Step 6: Final answer
    x = 513.91

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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.