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Finding the Fourth Proportional to 364.02, 546.48 and 256.38

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Solution

The fourth proportional to 364.02, 546.48 and 256.38 is: 384.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    364.02 : 546.48 = 256.38 : x
  2. Step 2: Convert to fraction form
    364.02/546.48 = 256.38/x
  3. Step 3: Cross multiply
    364.02x = 546.48 × 256.38
  4. Step 4: Simplify right side
    364.02x = 140,106.54
  5. Step 5: Solve for x
    x = 140,106.54/364.02
  6. Step 6: Final answer
    x = 384.89

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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.