Home / 284,213.08-423,849.32-280,399.56

Finding the Fourth Proportional to 284,213.08, 423,849.32 and 280,399.56

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Solution

The fourth proportional to 284,213.08, 423,849.32 and 280,399.56 is: 418,162.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,213.08 : 423,849.32 = 280,399.56 : x
  2. Step 2: Convert to fraction form
    284,213.08/423,849.32 = 280,399.56/x
  3. Step 3: Cross multiply
    284,213.08x = 423,849.32 × 280,399.56
  4. Step 4: Simplify right side
    284,213.08x = 118,847,162,834.30
  5. Step 5: Solve for x
    x = 118,847,162,834.30/284,213.08
  6. Step 6: Final answer
    x = 418,162.19

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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.