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Finding the Fourth Proportional to 384.88, 577.50 and 364.22

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Solution

The fourth proportional to 384.88, 577.50 and 364.22 is: 546.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    384.88 : 577.50 = 364.22 : x
  2. Step 2: Convert to fraction form
    384.88/577.50 = 364.22/x
  3. Step 3: Cross multiply
    384.88x = 577.50 × 364.22
  4. Step 4: Simplify right side
    384.88x = 210,337.05
  5. Step 5: Solve for x
    x = 210,337.05/384.88
  6. Step 6: Final answer
    x = 546.50

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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.