Home / 284,974.88-393,253.52-155,912.72

Finding the Fourth Proportional to 284,974.88, 393,253.52 and 155,912.72

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Solution

The fourth proportional to 284,974.88, 393,253.52 and 155,912.72 is: 215,153.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,974.88 : 393,253.52 = 155,912.72 : x
  2. Step 2: Convert to fraction form
    284,974.88/393,253.52 = 155,912.72/x
  3. Step 3: Cross multiply
    284,974.88x = 393,253.52 × 155,912.72
  4. Step 4: Simplify right side
    284,974.88x = 61,313,225,952.77
  5. Step 5: Solve for x
    x = 61,313,225,952.77/284,974.88
  6. Step 6: Final answer
    x = 215,153.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.