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Finding the Fourth Proportional to 534.45, 802.36 and 531.71

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Solution

The fourth proportional to 534.45, 802.36 and 531.71 is: 798.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    534.45 : 802.36 = 531.71 : x
  2. Step 2: Convert to fraction form
    534.45/802.36 = 531.71/x
  3. Step 3: Cross multiply
    534.45x = 802.36 × 531.71
  4. Step 4: Simplify right side
    534.45x = 426,624.02
  5. Step 5: Solve for x
    x = 426,624.02/534.45
  6. Step 6: Final answer
    x = 798.25

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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.