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Finding the Fourth Proportional to 537.38, 741.30 and 316.20

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Solution

The fourth proportional to 537.38, 741.30 and 316.20 is: 436.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    537.38 : 741.30 = 316.20 : x
  2. Step 2: Convert to fraction form
    537.38/741.30 = 316.20/x
  3. Step 3: Cross multiply
    537.38x = 741.30 × 316.20
  4. Step 4: Simplify right side
    537.38x = 234,402.43
  5. Step 5: Solve for x
    x = 234,402.43/537.38
  6. Step 6: Final answer
    x = 436.19

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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.