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Finding the Fourth Proportional to 540.63, 746.01 and 316.53

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Solution

The fourth proportional to 540.63, 746.01 and 316.53 is: 436.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    540.63 : 746.01 = 316.53 : x
  2. Step 2: Convert to fraction form
    540.63/746.01 = 316.53/x
  3. Step 3: Cross multiply
    540.63x = 746.01 × 316.53
  4. Step 4: Simplify right side
    540.63x = 236,134.55
  5. Step 5: Solve for x
    x = 236,134.55/540.63
  6. Step 6: Final answer
    x = 436.78

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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.