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Finding the Fourth Proportional to 538.01, 742.52 and 302.00

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Solution

The fourth proportional to 538.01, 742.52 and 302.00 is: 416.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    538.01 : 742.52 = 302.00 : x
  2. Step 2: Convert to fraction form
    538.01/742.52 = 302.00/x
  3. Step 3: Cross multiply
    538.01x = 742.52 × 302.00
  4. Step 4: Simplify right side
    538.01x = 224,235.82
  5. Step 5: Solve for x
    x = 224,235.82/538.01
  6. Step 6: Final answer
    x = 416.79

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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.