Home / 291,217.60-436,826.40-231,731.20

Finding the Fourth Proportional to 291,217.60, 436,826.40 and 231,731.20

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Solution

The fourth proportional to 291,217.60, 436,826.40 and 231,731.20 is: 347,596.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,217.60 : 436,826.40 = 231,731.20 : x
  2. Step 2: Convert to fraction form
    291,217.60/436,826.40 = 231,731.20/x
  3. Step 3: Cross multiply
    291,217.60x = 436,826.40 × 231,731.20
  4. Step 4: Simplify right side
    291,217.60x = 101,226,305,863.68
  5. Step 5: Solve for x
    x = 101,226,305,863.68/291,217.60
  6. Step 6: Final answer
    x = 347,596.80

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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.