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Finding the Fourth Proportional to 384.21, 530.15 and 244.26

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Solution

The fourth proportional to 384.21, 530.15 and 244.26 is: 337.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    384.21 : 530.15 = 244.26 : x
  2. Step 2: Convert to fraction form
    384.21/530.15 = 244.26/x
  3. Step 3: Cross multiply
    384.21x = 530.15 × 244.26
  4. Step 4: Simplify right side
    384.21x = 129,493.22
  5. Step 5: Solve for x
    x = 129,493.22/384.21
  6. Step 6: Final answer
    x = 337.04

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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.