Home / 291,206.10-436,809.15-231,719.70

Finding the Fourth Proportional to 291,206.10, 436,809.15 and 231,719.70

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Solution

The fourth proportional to 291,206.10, 436,809.15 and 231,719.70 is: 347,579.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,206.10 : 436,809.15 = 231,719.70 : x
  2. Step 2: Convert to fraction form
    291,206.10/436,809.15 = 231,719.70/x
  3. Step 3: Cross multiply
    291,206.10x = 436,809.15 × 231,719.70
  4. Step 4: Simplify right side
    291,206.10x = 101,217,285,195.26
  5. Step 5: Solve for x
    x = 101,217,285,195.26/291,206.10
  6. Step 6: Final answer
    x = 347,579.55

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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.