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Finding the Fourth Proportional to 384.62, 577.03 and 222.01

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Solution

The fourth proportional to 384.62, 577.03 and 222.01 is: 333.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    384.62 : 577.03 = 222.01 : x
  2. Step 2: Convert to fraction form
    384.62/577.03 = 222.01/x
  3. Step 3: Cross multiply
    384.62x = 577.03 × 222.01
  4. Step 4: Simplify right side
    384.62x = 128,106.43
  5. Step 5: Solve for x
    x = 128,106.43/384.62
  6. Step 6: Final answer
    x = 333.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.