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Finding the Fourth Proportional to 291.60, 436.71 and 245.10

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Solution

The fourth proportional to 291.60, 436.71 and 245.10 is: 367.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    291.60 : 436.71 = 245.10 : x
  2. Step 2: Convert to fraction form
    291.60/436.71 = 245.10/x
  3. Step 3: Cross multiply
    291.60x = 436.71 × 245.10
  4. Step 4: Simplify right side
    291.60x = 107,037.62
  5. Step 5: Solve for x
    x = 107,037.62/291.60
  6. Step 6: Final answer
    x = 367.07

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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.