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Finding the Fourth Proportional to 293.32, 437 and 280.90

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Solution

The fourth proportional to 293.32, 437 and 280.90 is: 418.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    293.32 : 437 = 280.90 : x
  2. Step 2: Convert to fraction form
    293.32/437 = 280.90/x
  3. Step 3: Cross multiply
    293.32x = 437 × 280.90
  4. Step 4: Simplify right side
    293.32x = 122,753.30
  5. Step 5: Solve for x
    x = 122,753.30/293.32
  6. Step 6: Final answer
    x = 418.50

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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.