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Finding the Fourth Proportional to 509.00, 763.49 and 124.25

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Solution

The fourth proportional to 509.00, 763.49 and 124.25 is: 186.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    509.00 : 763.49 = 124.25 : x
  2. Step 2: Convert to fraction form
    509.00/763.49 = 124.25/x
  3. Step 3: Cross multiply
    509.00x = 763.49 × 124.25
  4. Step 4: Simplify right side
    509.00x = 94,859.43
  5. Step 5: Solve for x
    x = 94,859.43/509.00
  6. Step 6: Final answer
    x = 186.37

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Double scale
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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.