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Finding the Fourth Proportional to 611.40, 844 and 375.32

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Solution

The fourth proportional to 611.40, 844 and 375.32 is: 518.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    611.40 : 844 = 375.32 : x
  2. Step 2: Convert to fraction form
    611.40/844 = 375.32/x
  3. Step 3: Cross multiply
    611.40x = 844 × 375.32
  4. Step 4: Simplify right side
    611.40x = 316,770.08
  5. Step 5: Solve for x
    x = 316,770.08/611.40
  6. Step 6: Final answer
    x = 518.11

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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.