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Finding the Fourth Proportional to 508.63, 761.31 and 335.44

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Solution

The fourth proportional to 508.63, 761.31 and 335.44 is: 502.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    508.63 : 761.31 = 335.44 : x
  2. Step 2: Convert to fraction form
    508.63/761.31 = 335.44/x
  3. Step 3: Cross multiply
    508.63x = 761.31 × 335.44
  4. Step 4: Simplify right side
    508.63x = 255,373.83
  5. Step 5: Solve for x
    x = 255,373.83/508.63
  6. Step 6: Final answer
    x = 502.08

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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.