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Finding the Fourth Proportional to 386.01, 576.47 and 364.95

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Solution

The fourth proportional to 386.01, 576.47 and 364.95 is: 545.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    386.01 : 576.47 = 364.95 : x
  2. Step 2: Convert to fraction form
    386.01/576.47 = 364.95/x
  3. Step 3: Cross multiply
    386.01x = 576.47 × 364.95
  4. Step 4: Simplify right side
    386.01x = 210,380.90
  5. Step 5: Solve for x
    x = 210,380.90/386.01
  6. Step 6: Final answer
    x = 545.01

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.