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Finding the Fourth Proportional to 469.92, 704.68 and 253.44

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Solution

The fourth proportional to 469.92, 704.68 and 253.44 is: 380.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    469.92 : 704.68 = 253.44 : x
  2. Step 2: Convert to fraction form
    469.92/704.68 = 253.44/x
  3. Step 3: Cross multiply
    469.92x = 704.68 × 253.44
  4. Step 4: Simplify right side
    469.92x = 178,594.10
  5. Step 5: Solve for x
    x = 178,594.10/469.92
  6. Step 6: Final answer
    x = 380.05

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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.