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Finding the Fourth Proportional to 534.71, 802.80 and 353.27

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Solution

The fourth proportional to 534.71, 802.80 and 353.27 is: 530.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    534.71 : 802.80 = 353.27 : x
  2. Step 2: Convert to fraction form
    534.71/802.80 = 353.27/x
  3. Step 3: Cross multiply
    534.71x = 802.80 × 353.27
  4. Step 4: Simplify right side
    534.71x = 283,601.14
  5. Step 5: Solve for x
    x = 283,601.14/534.71
  6. Step 6: Final answer
    x = 530.39

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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.