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Finding the Fourth Proportional to 444.57, 612.77 and 297.15

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Solution

The fourth proportional to 444.57, 612.77 and 297.15 is: 409.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    444.57 : 612.77 = 297.15 : x
  2. Step 2: Convert to fraction form
    444.57/612.77 = 297.15/x
  3. Step 3: Cross multiply
    444.57x = 612.77 × 297.15
  4. Step 4: Simplify right side
    444.57x = 182,082.70
  5. Step 5: Solve for x
    x = 182,082.70/444.57
  6. Step 6: Final answer
    x = 409.57

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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.