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Finding the Fourth Proportional to 357.25, 532.93 and 302.75

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Solution

The fourth proportional to 357.25, 532.93 and 302.75 is: 451.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    357.25 : 532.93 = 302.75 : x
  2. Step 2: Convert to fraction form
    357.25/532.93 = 302.75/x
  3. Step 3: Cross multiply
    357.25x = 532.93 × 302.75
  4. Step 4: Simplify right side
    357.25x = 161,341.71
  5. Step 5: Solve for x
    x = 161,341.71/357.25
  6. Step 6: Final answer
    x = 451.62

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.