Home / 291,849.14-436,439.64-212,154.86

Finding the Fourth Proportional to 291,849.14, 436,439.64 and 212,154.86

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Solution

The fourth proportional to 291,849.14, 436,439.64 and 212,154.86 is: 317,262.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,849.14 : 436,439.64 = 212,154.86 : x
  2. Step 2: Convert to fraction form
    291,849.14/436,439.64 = 212,154.86/x
  3. Step 3: Cross multiply
    291,849.14x = 436,439.64 × 212,154.86
  4. Step 4: Simplify right side
    291,849.14x = 92,592,790,722.65
  5. Step 5: Solve for x
    x = 92,592,790,722.65/291,849.14
  6. Step 6: Final answer
    x = 317,262.51

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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.