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Finding the Fourth Proportional to 384.39, 529.91 and 273.83

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Solution

The fourth proportional to 384.39, 529.91 and 273.83 is: 377.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    384.39 : 529.91 = 273.83 : x
  2. Step 2: Convert to fraction form
    384.39/529.91 = 273.83/x
  3. Step 3: Cross multiply
    384.39x = 529.91 × 273.83
  4. Step 4: Simplify right side
    384.39x = 145,101.24
  5. Step 5: Solve for x
    x = 145,101.24/384.39
  6. Step 6: Final answer
    x = 377.48

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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.