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Finding the Fourth Proportional to 537.53, 741.74 and 316.40

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Solution

The fourth proportional to 537.53, 741.74 and 316.40 is: 436.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    537.53 : 741.74 = 316.40 : x
  2. Step 2: Convert to fraction form
    537.53/741.74 = 316.40/x
  3. Step 3: Cross multiply
    537.53x = 741.74 × 316.40
  4. Step 4: Simplify right side
    537.53x = 234,681.25
  5. Step 5: Solve for x
    x = 234,681.25/537.53
  6. Step 6: Final answer
    x = 436.60

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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.