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Finding the Fourth Proportional to 364.48, 546.11 and 256.08

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Solution

The fourth proportional to 364.48, 546.11 and 256.08 is: 383.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    364.48 : 546.11 = 256.08 : x
  2. Step 2: Convert to fraction form
    364.48/546.11 = 256.08/x
  3. Step 3: Cross multiply
    364.48x = 546.11 × 256.08
  4. Step 4: Simplify right side
    364.48x = 139,846.44
  5. Step 5: Solve for x
    x = 139,846.44/364.48
  6. Step 6: Final answer
    x = 383.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.