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Finding the Fourth Proportional to 502.34, 752.90 and 357.75

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Solution

The fourth proportional to 502.34, 752.90 and 357.75 is: 536.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    502.34 : 752.90 = 357.75 : x
  2. Step 2: Convert to fraction form
    502.34/752.90 = 357.75/x
  3. Step 3: Cross multiply
    502.34x = 752.90 × 357.75
  4. Step 4: Simplify right side
    502.34x = 269,348.19
  5. Step 5: Solve for x
    x = 269,348.19/502.34
  6. Step 6: Final answer
    x = 536.19

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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.