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Finding the Fourth Proportional to 426.01, 637.92 and 357.36

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Solution

The fourth proportional to 426.01, 637.92 and 357.36 is: 535.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    426.01 : 637.92 = 357.36 : x
  2. Step 2: Convert to fraction form
    426.01/637.92 = 357.36/x
  3. Step 3: Cross multiply
    426.01x = 637.92 × 357.36
  4. Step 4: Simplify right side
    426.01x = 227,967.09
  5. Step 5: Solve for x
    x = 227,967.09/426.01
  6. Step 6: Final answer
    x = 535.12

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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.