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Finding the Fourth Proportional to 237.46, 355.56 and 189.40

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Solution

The fourth proportional to 237.46, 355.56 and 189.40 is: 283.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    237.46 : 355.56 = 189.40 : x
  2. Step 2: Convert to fraction form
    237.46/355.56 = 189.40/x
  3. Step 3: Cross multiply
    237.46x = 355.56 × 189.40
  4. Step 4: Simplify right side
    237.46x = 67,343.06
  5. Step 5: Solve for x
    x = 67,343.06/237.46
  6. Step 6: Final answer
    x = 283.60

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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.