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Finding the Fourth Proportional to 509.52, 703.20 and 335.22

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Solution

The fourth proportional to 509.52, 703.20 and 335.22 is: 462.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    509.52 : 703.20 = 335.22 : x
  2. Step 2: Convert to fraction form
    509.52/703.20 = 335.22/x
  3. Step 3: Cross multiply
    509.52x = 703.20 × 335.22
  4. Step 4: Simplify right side
    509.52x = 235,726.70
  5. Step 5: Solve for x
    x = 235,726.70/509.52
  6. Step 6: Final answer
    x = 462.64

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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.