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Finding the Fourth Proportional to 191.61, 265.65 and 184.94

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Solution

The fourth proportional to 191.61, 265.65 and 184.94 is: 256.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    191.61 : 265.65 = 184.94 : x
  2. Step 2: Convert to fraction form
    191.61/265.65 = 184.94/x
  3. Step 3: Cross multiply
    191.61x = 265.65 × 184.94
  4. Step 4: Simplify right side
    191.61x = 49,127.98
  5. Step 5: Solve for x
    x = 49,127.98/191.61
  6. Step 6: Final answer
    x = 256.40

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.