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Finding the Fourth Proportional to 540.46, 746.18 and 374.61

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Solution

The fourth proportional to 540.46, 746.18 and 374.61 is: 517.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    540.46 : 746.18 = 374.61 : x
  2. Step 2: Convert to fraction form
    540.46/746.18 = 374.61/x
  3. Step 3: Cross multiply
    540.46x = 746.18 × 374.61
  4. Step 4: Simplify right side
    540.46x = 279,526.49
  5. Step 5: Solve for x
    x = 279,526.49/540.46
  6. Step 6: Final answer
    x = 517.20

Related Problems

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Double scale
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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.