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Finding the Third Proportional to 317.53 and 464.06

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Solution

The third proportional to 317.53 and 464.06 is: 678.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    317.53 : 464.06 = 464.06 : x
  2. Step 2: Convert to fraction form
    317.53/464.06 = 464.06/x
  3. Step 3: Cross multiply
    317.53x = 464.06 × 464.06
  4. Step 4: Simplify right side
    317.53x = 215,354.00
  5. Step 5: Solve for x
    x = 215,354.00/317.53
  6. Step 6: Final answer
    x = 678.21

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.