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Finding the Fourth Proportional to 362.57, 500.85 and 288.79

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Solution

The fourth proportional to 362.57, 500.85 and 288.79 is: 398.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    362.57 : 500.85 = 288.79 : x
  2. Step 2: Convert to fraction form
    362.57/500.85 = 288.79/x
  3. Step 3: Cross multiply
    362.57x = 500.85 × 288.79
  4. Step 4: Simplify right side
    362.57x = 144,639.22
  5. Step 5: Solve for x
    x = 144,639.22/362.57
  6. Step 6: Final answer
    x = 398.93

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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.