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Finding the Fourth Proportional to 468.64, 704.40 and 298.72

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Solution

The fourth proportional to 468.64, 704.40 and 298.72 is: 449.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    468.64 : 704.40 = 298.72 : x
  2. Step 2: Convert to fraction form
    468.64/704.40 = 298.72/x
  3. Step 3: Cross multiply
    468.64x = 704.40 × 298.72
  4. Step 4: Simplify right side
    468.64x = 210,418.37
  5. Step 5: Solve for x
    x = 210,418.37/468.64
  6. Step 6: Final answer
    x = 449.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.