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Finding the Fourth Proportional to 383.30, 572.01 and 342.29

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Solution

The fourth proportional to 383.30, 572.01 and 342.29 is: 510.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    383.30 : 572.01 = 342.29 : x
  2. Step 2: Convert to fraction form
    383.30/572.01 = 342.29/x
  3. Step 3: Cross multiply
    383.30x = 572.01 × 342.29
  4. Step 4: Simplify right side
    383.30x = 195,794.73
  5. Step 5: Solve for x
    x = 195,794.73/383.30
  6. Step 6: Final answer
    x = 510.81

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.