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Finding the Fourth Proportional to 384.66, 577.02 and 124.59

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Solution

The fourth proportional to 384.66, 577.02 and 124.59 is: 186.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    384.66 : 577.02 = 124.59 : x
  2. Step 2: Convert to fraction form
    384.66/577.02 = 124.59/x
  3. Step 3: Cross multiply
    384.66x = 577.02 × 124.59
  4. Step 4: Simplify right side
    384.66x = 71,890.92
  5. Step 5: Solve for x
    x = 71,890.92/384.66
  6. Step 6: Final answer
    x = 186.89

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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.