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Finding the Fourth Proportional to 541.28, 746.62 and 344.76

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Solution

The fourth proportional to 541.28, 746.62 and 344.76 is: 475.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    541.28 : 746.62 = 344.76 : x
  2. Step 2: Convert to fraction form
    541.28/746.62 = 344.76/x
  3. Step 3: Cross multiply
    541.28x = 746.62 × 344.76
  4. Step 4: Simplify right side
    541.28x = 257,401.05
  5. Step 5: Solve for x
    x = 257,401.05/541.28
  6. Step 6: Final answer
    x = 475.54

Related Problems

Find fourth proportional to 270.64, 373.31 and 172.38
Half scale
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Double scale
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Similar ratio
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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.