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Finding the Fourth Proportional to 305.37, 460.37 and 286.20

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Solution

The fourth proportional to 305.37, 460.37 and 286.20 is: 431.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    305.37 : 460.37 = 286.20 : x
  2. Step 2: Convert to fraction form
    305.37/460.37 = 286.20/x
  3. Step 3: Cross multiply
    305.37x = 460.37 × 286.20
  4. Step 4: Simplify right side
    305.37x = 131,758.61
  5. Step 5: Solve for x
    x = 131,758.61/305.37
  6. Step 6: Final answer
    x = 431.47

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.