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Finding the Fourth Proportional to 399.23, 601.19 and 348.48

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Solution

The fourth proportional to 399.23, 601.19 and 348.48 is: 524.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    399.23 : 601.19 = 348.48 : x
  2. Step 2: Convert to fraction form
    399.23/601.19 = 348.48/x
  3. Step 3: Cross multiply
    399.23x = 601.19 × 348.48
  4. Step 4: Simplify right side
    399.23x = 209,502.69
  5. Step 5: Solve for x
    x = 209,502.69/399.23
  6. Step 6: Final answer
    x = 524.77

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.