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Finding the Fourth Proportional to 362.17, 542.49 and 284.77

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Solution

The fourth proportional to 362.17, 542.49 and 284.77 is: 426.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    362.17 : 542.49 = 284.77 : x
  2. Step 2: Convert to fraction form
    362.17/542.49 = 284.77/x
  3. Step 3: Cross multiply
    362.17x = 542.49 × 284.77
  4. Step 4: Simplify right side
    362.17x = 154,482.88
  5. Step 5: Solve for x
    x = 154,482.88/362.17
  6. Step 6: Final answer
    x = 426.55

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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.