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Finding the Fourth Proportional to 537.70, 741.81 and 316.57

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Solution

The fourth proportional to 537.70, 741.81 and 316.57 is: 436.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    537.70 : 741.81 = 316.57 : x
  2. Step 2: Convert to fraction form
    537.70/741.81 = 316.57/x
  3. Step 3: Cross multiply
    537.70x = 741.81 × 316.57
  4. Step 4: Simplify right side
    537.70x = 234,834.79
  5. Step 5: Solve for x
    x = 234,834.79/537.70
  6. Step 6: Final answer
    x = 436.74

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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.