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Finding the Fourth Proportional to 508.06, 758.20 and 453.38

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Solution

The fourth proportional to 508.06, 758.20 and 453.38 is: 676.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    508.06 : 758.20 = 453.38 : x
  2. Step 2: Convert to fraction form
    508.06/758.20 = 453.38/x
  3. Step 3: Cross multiply
    508.06x = 758.20 × 453.38
  4. Step 4: Simplify right side
    508.06x = 343,752.72
  5. Step 5: Solve for x
    x = 343,752.72/508.06
  6. Step 6: Final answer
    x = 676.60

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.