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Finding the Fourth Proportional to 384.60, 530.91 and 244.73

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Solution

The fourth proportional to 384.60, 530.91 and 244.73 is: 337.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    384.60 : 530.91 = 244.73 : x
  2. Step 2: Convert to fraction form
    384.60/530.91 = 244.73/x
  3. Step 3: Cross multiply
    384.60x = 530.91 × 244.73
  4. Step 4: Simplify right side
    384.60x = 129,926.95
  5. Step 5: Solve for x
    x = 129,926.95/384.60
  6. Step 6: Final answer
    x = 337.82

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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.