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Finding the Fourth Proportional to 297.45, 444.35 and 214.48

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Solution

The fourth proportional to 297.45, 444.35 and 214.48 is: 320.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    297.45 : 444.35 = 214.48 : x
  2. Step 2: Convert to fraction form
    297.45/444.35 = 214.48/x
  3. Step 3: Cross multiply
    297.45x = 444.35 × 214.48
  4. Step 4: Simplify right side
    297.45x = 95,303.10
  5. Step 5: Solve for x
    x = 95,303.10/297.45
  6. Step 6: Final answer
    x = 320.40

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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.