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Finding the Fourth Proportional to 508.13, 760.72 and 299.26

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Solution

The fourth proportional to 508.13, 760.72 and 299.26 is: 448.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    508.13 : 760.72 = 299.26 : x
  2. Step 2: Convert to fraction form
    508.13/760.72 = 299.26/x
  3. Step 3: Cross multiply
    508.13x = 760.72 × 299.26
  4. Step 4: Simplify right side
    508.13x = 227,653.07
  5. Step 5: Solve for x
    x = 227,653.07/508.13
  6. Step 6: Final answer
    x = 448.02

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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.