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Finding the Fourth Proportional to 378.58, 567.34 and 183.70

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Solution

The fourth proportional to 378.58, 567.34 and 183.70 is: 275.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    378.58 : 567.34 = 183.70 : x
  2. Step 2: Convert to fraction form
    378.58/567.34 = 183.70/x
  3. Step 3: Cross multiply
    378.58x = 567.34 × 183.70
  4. Step 4: Simplify right side
    378.58x = 104,220.36
  5. Step 5: Solve for x
    x = 104,220.36/378.58
  6. Step 6: Final answer
    x = 275.29

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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.