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Finding the Fourth Proportional to 1,032.50, 1,548.84 and 263

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Solution

The fourth proportional to 1,032.50, 1,548.84 and 263 is: 394.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,032.50 : 1,548.84 = 263 : x
  2. Step 2: Convert to fraction form
    1,032.50/1,548.84 = 263/x
  3. Step 3: Cross multiply
    1,032.50x = 1,548.84 × 263
  4. Step 4: Simplify right side
    1,032.50x = 407,344.92
  5. Step 5: Solve for x
    x = 407,344.92/1,032.50
  6. Step 6: Final answer
    x = 394.52

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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.