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Finding the Fourth Proportional to 532.04, 797.45 and 257.72

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Solution

The fourth proportional to 532.04, 797.45 and 257.72 is: 386.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    532.04 : 797.45 = 257.72 : x
  2. Step 2: Convert to fraction form
    532.04/797.45 = 257.72/x
  3. Step 3: Cross multiply
    532.04x = 797.45 × 257.72
  4. Step 4: Simplify right side
    532.04x = 205,513.54
  5. Step 5: Solve for x
    x = 205,513.54/532.04
  6. Step 6: Final answer
    x = 386.28

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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.