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Finding the Fourth Proportional to 424.79, 637.27 and 150.81

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Solution

The fourth proportional to 424.79, 637.27 and 150.81 is: 226.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    424.79 : 637.27 = 150.81 : x
  2. Step 2: Convert to fraction form
    424.79/637.27 = 150.81/x
  3. Step 3: Cross multiply
    424.79x = 637.27 × 150.81
  4. Step 4: Simplify right side
    424.79x = 96,107.51
  5. Step 5: Solve for x
    x = 96,107.51/424.79
  6. Step 6: Final answer
    x = 226.24

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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.