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Finding the Fourth Proportional to 540.00, 744.99 and 303.90

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Solution

The fourth proportional to 540.00, 744.99 and 303.90 is: 419.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    540.00 : 744.99 = 303.90 : x
  2. Step 2: Convert to fraction form
    540.00/744.99 = 303.90/x
  3. Step 3: Cross multiply
    540.00x = 744.99 × 303.90
  4. Step 4: Simplify right side
    540.00x = 226,402.20
  5. Step 5: Solve for x
    x = 226,402.20/540.00
  6. Step 6: Final answer
    x = 419.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.