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Finding the Fourth Proportional to 738.99, 1,108.50 and 191.14

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Solution

The fourth proportional to 738.99, 1,108.50 and 191.14 is: 286.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    738.99 : 1,108.50 = 191.14 : x
  2. Step 2: Convert to fraction form
    738.99/1,108.50 = 191.14/x
  3. Step 3: Cross multiply
    738.99x = 1,108.50 × 191.14
  4. Step 4: Simplify right side
    738.99x = 211,872.19
  5. Step 5: Solve for x
    x = 211,872.19/738.99
  6. Step 6: Final answer
    x = 286.71

Related Problems

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Double scale
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Similar ratio
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1.5x scale

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.