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Finding the Fourth Proportional to 508.25, 760.70 and 359.72

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Solution

The fourth proportional to 508.25, 760.70 and 359.72 is: 538.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    508.25 : 760.70 = 359.72 : x
  2. Step 2: Convert to fraction form
    508.25/760.70 = 359.72/x
  3. Step 3: Cross multiply
    508.25x = 760.70 × 359.72
  4. Step 4: Simplify right side
    508.25x = 273,639.00
  5. Step 5: Solve for x
    x = 273,639.00/508.25
  6. Step 6: Final answer
    x = 538.39

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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.