Home / 284,214.08-423,850.81-280,400.56

Finding the Fourth Proportional to 284,214.08, 423,850.81 and 280,400.56

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Solution

The fourth proportional to 284,214.08, 423,850.81 and 280,400.56 is: 418,163.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,214.08 : 423,850.81 = 280,400.56 : x
  2. Step 2: Convert to fraction form
    284,214.08/423,850.81 = 280,400.56/x
  3. Step 3: Cross multiply
    284,214.08x = 423,850.81 × 280,400.56
  4. Step 4: Simplify right side
    284,214.08x = 118,848,004,480.45
  5. Step 5: Solve for x
    x = 118,848,004,480.45/284,214.08
  6. Step 6: Final answer
    x = 418,163.68

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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.