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Finding the Fourth Proportional to 454.16, 626.74 and 247.16

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Solution

The fourth proportional to 454.16, 626.74 and 247.16 is: 341.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    454.16 : 626.74 = 247.16 : x
  2. Step 2: Convert to fraction form
    454.16/626.74 = 247.16/x
  3. Step 3: Cross multiply
    454.16x = 626.74 × 247.16
  4. Step 4: Simplify right side
    454.16x = 154,905.06
  5. Step 5: Solve for x
    x = 154,905.06/454.16
  6. Step 6: Final answer
    x = 341.08

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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.