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Finding the Fourth Proportional to 384.33, 529.92 and 314.13

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Solution

The fourth proportional to 384.33, 529.92 and 314.13 is: 433.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    384.33 : 529.92 = 314.13 : x
  2. Step 2: Convert to fraction form
    384.33/529.92 = 314.13/x
  3. Step 3: Cross multiply
    384.33x = 529.92 × 314.13
  4. Step 4: Simplify right side
    384.33x = 166,463.77
  5. Step 5: Solve for x
    x = 166,463.77/384.33
  6. Step 6: Final answer
    x = 433.13

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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.