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Finding the Fourth Proportional to 191.10, 283.02 and 186.30

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Solution

The fourth proportional to 191.10, 283.02 and 186.30 is: 275.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    191.10 : 283.02 = 186.30 : x
  2. Step 2: Convert to fraction form
    191.10/283.02 = 186.30/x
  3. Step 3: Cross multiply
    191.10x = 283.02 × 186.30
  4. Step 4: Simplify right side
    191.10x = 52,726.63
  5. Step 5: Solve for x
    x = 52,726.63/191.10
  6. Step 6: Final answer
    x = 275.91

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.