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Finding the Fourth Proportional to 534.90, 802.02 and 291.36

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Solution

The fourth proportional to 534.90, 802.02 and 291.36 is: 436.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    534.90 : 802.02 = 291.36 : x
  2. Step 2: Convert to fraction form
    534.90/802.02 = 291.36/x
  3. Step 3: Cross multiply
    534.90x = 802.02 × 291.36
  4. Step 4: Simplify right side
    534.90x = 233,676.55
  5. Step 5: Solve for x
    x = 233,676.55/534.90
  6. Step 6: Final answer
    x = 436.86

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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.