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Finding the Fourth Proportional to 509.92, 703.55 and 335.27

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Solution

The fourth proportional to 509.92, 703.55 and 335.27 is: 462.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    509.92 : 703.55 = 335.27 : x
  2. Step 2: Convert to fraction form
    509.92/703.55 = 335.27/x
  3. Step 3: Cross multiply
    509.92x = 703.55 × 335.27
  4. Step 4: Simplify right side
    509.92x = 235,881.81
  5. Step 5: Solve for x
    x = 235,881.81/509.92
  6. Step 6: Final answer
    x = 462.59

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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.