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Finding the Fourth Proportional to 540.53, 746.15 and 400.58

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Solution

The fourth proportional to 540.53, 746.15 and 400.58 is: 552.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    540.53 : 746.15 = 400.58 : x
  2. Step 2: Convert to fraction form
    540.53/746.15 = 400.58/x
  3. Step 3: Cross multiply
    540.53x = 746.15 × 400.58
  4. Step 4: Simplify right side
    540.53x = 298,892.77
  5. Step 5: Solve for x
    x = 298,892.77/540.53
  6. Step 6: Final answer
    x = 552.96

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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.