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Finding the Fourth Proportional to 384.23, 530.54 and 236.95

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Solution

The fourth proportional to 384.23, 530.54 and 236.95 is: 327.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    384.23 : 530.54 = 236.95 : x
  2. Step 2: Convert to fraction form
    384.23/530.54 = 236.95/x
  3. Step 3: Cross multiply
    384.23x = 530.54 × 236.95
  4. Step 4: Simplify right side
    384.23x = 125,711.45
  5. Step 5: Solve for x
    x = 125,711.45/384.23
  6. Step 6: Final answer
    x = 327.18

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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.