Home / 284,239.44-392,244.09-155,172.95

Finding the Fourth Proportional to 284,239.44, 392,244.09 and 155,172.95

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Solution

The fourth proportional to 284,239.44, 392,244.09 and 155,172.95 is: 214,135.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,239.44 : 392,244.09 = 155,172.95 : x
  2. Step 2: Convert to fraction form
    284,239.44/392,244.09 = 155,172.95/x
  3. Step 3: Cross multiply
    284,239.44x = 392,244.09 × 155,172.95
  4. Step 4: Simplify right side
    284,239.44x = 60,865,670,993.09
  5. Step 5: Solve for x
    x = 60,865,670,993.09/284,239.44
  6. Step 6: Final answer
    x = 214,135.21

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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.