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Finding the Fourth Proportional to 384.16, 529.36 and 267.52

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Solution

The fourth proportional to 384.16, 529.36 and 267.52 is: 368.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    384.16 : 529.36 = 267.52 : x
  2. Step 2: Convert to fraction form
    384.16/529.36 = 267.52/x
  3. Step 3: Cross multiply
    384.16x = 529.36 × 267.52
  4. Step 4: Simplify right side
    384.16x = 141,614.39
  5. Step 5: Solve for x
    x = 141,614.39/384.16
  6. Step 6: Final answer
    x = 368.63

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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.