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Finding the Fourth Proportional to 374.24, 561.47 and 130.97

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Solution

The fourth proportional to 374.24, 561.47 and 130.97 is: 196.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    374.24 : 561.47 = 130.97 : x
  2. Step 2: Convert to fraction form
    374.24/561.47 = 130.97/x
  3. Step 3: Cross multiply
    374.24x = 561.47 × 130.97
  4. Step 4: Simplify right side
    374.24x = 73,536.47
  5. Step 5: Solve for x
    x = 73,536.47/374.24
  6. Step 6: Final answer
    x = 196.49

Related Problems

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Double scale
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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.