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Finding the Fourth Proportional to 532.80, 803.16 and 496.80

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Solution

The fourth proportional to 532.80, 803.16 and 496.80 is: 748.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    532.80 : 803.16 = 496.80 : x
  2. Step 2: Convert to fraction form
    532.80/803.16 = 496.80/x
  3. Step 3: Cross multiply
    532.80x = 803.16 × 496.80
  4. Step 4: Simplify right side
    532.80x = 399,009.89
  5. Step 5: Solve for x
    x = 399,009.89/532.80
  6. Step 6: Final answer
    x = 748.89

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.