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Finding the Fourth Proportional to 523.90, 723.15 and 337.40

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Solution

The fourth proportional to 523.90, 723.15 and 337.40 is: 465.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    523.90 : 723.15 = 337.40 : x
  2. Step 2: Convert to fraction form
    523.90/723.15 = 337.40/x
  3. Step 3: Cross multiply
    523.90x = 723.15 × 337.40
  4. Step 4: Simplify right side
    523.90x = 243,987.19
  5. Step 5: Solve for x
    x = 243,987.19/523.90
  6. Step 6: Final answer
    x = 465.71

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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.