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Finding the Fourth Proportional to 532.56, 802.66 and 502.80

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Solution

The fourth proportional to 532.56, 802.66 and 502.80 is: 757.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    532.56 : 802.66 = 502.80 : x
  2. Step 2: Convert to fraction form
    532.56/802.66 = 502.80/x
  3. Step 3: Cross multiply
    532.56x = 802.66 × 502.80
  4. Step 4: Simplify right side
    532.56x = 403,577.45
  5. Step 5: Solve for x
    x = 403,577.45/532.56
  6. Step 6: Final answer
    x = 757.81

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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.