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Finding the Fourth Proportional to 534.99, 738.18 and 338.39

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Solution

The fourth proportional to 534.99, 738.18 and 338.39 is: 466.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    534.99 : 738.18 = 338.39 : x
  2. Step 2: Convert to fraction form
    534.99/738.18 = 338.39/x
  3. Step 3: Cross multiply
    534.99x = 738.18 × 338.39
  4. Step 4: Simplify right side
    534.99x = 249,789.04
  5. Step 5: Solve for x
    x = 249,789.04/534.99
  6. Step 6: Final answer
    x = 466.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.