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Finding the Fourth Proportional to 384.07, 528.85 and 273.35

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Solution

The fourth proportional to 384.07, 528.85 and 273.35 is: 376.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    384.07 : 528.85 = 273.35 : x
  2. Step 2: Convert to fraction form
    384.07/528.85 = 273.35/x
  3. Step 3: Cross multiply
    384.07x = 528.85 × 273.35
  4. Step 4: Simplify right side
    384.07x = 144,561.15
  5. Step 5: Solve for x
    x = 144,561.15/384.07
  6. Step 6: Final answer
    x = 376.39

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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.