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Finding the Fourth Proportional to 291.99, 435.89 and 250.41

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Solution

The fourth proportional to 291.99, 435.89 and 250.41 is: 373.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    291.99 : 435.89 = 250.41 : x
  2. Step 2: Convert to fraction form
    291.99/435.89 = 250.41/x
  3. Step 3: Cross multiply
    291.99x = 435.89 × 250.41
  4. Step 4: Simplify right side
    291.99x = 109,149.96
  5. Step 5: Solve for x
    x = 109,149.96/291.99
  6. Step 6: Final answer
    x = 373.81

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.