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Finding the Fourth Proportional to 534.93, 802.85 and 210.53

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Solution

The fourth proportional to 534.93, 802.85 and 210.53 is: 315.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    534.93 : 802.85 = 210.53 : x
  2. Step 2: Convert to fraction form
    534.93/802.85 = 210.53/x
  3. Step 3: Cross multiply
    534.93x = 802.85 × 210.53
  4. Step 4: Simplify right side
    534.93x = 169,022.23
  5. Step 5: Solve for x
    x = 169,022.23/534.93
  6. Step 6: Final answer
    x = 315.97

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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.