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Finding the Fourth Proportional to 541.89, 746.21 and 384.55

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Solution

The fourth proportional to 541.89, 746.21 and 384.55 is: 529.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    541.89 : 746.21 = 384.55 : x
  2. Step 2: Convert to fraction form
    541.89/746.21 = 384.55/x
  3. Step 3: Cross multiply
    541.89x = 746.21 × 384.55
  4. Step 4: Simplify right side
    541.89x = 286,954.15
  5. Step 5: Solve for x
    x = 286,954.15/541.89
  6. Step 6: Final answer
    x = 529.54

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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.