Home / 379,890.27-569,836.35-155,250.66

Finding the Fourth Proportional to 379,890.27, 569,836.35 and 155,250.66

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Solution

The fourth proportional to 379,890.27, 569,836.35 and 155,250.66 is: 232,876.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,890.27 : 569,836.35 = 155,250.66 : x
  2. Step 2: Convert to fraction form
    379,890.27/569,836.35 = 155,250.66/x
  3. Step 3: Cross multiply
    379,890.27x = 569,836.35 × 155,250.66
  4. Step 4: Simplify right side
    379,890.27x = 88,467,469,429.49
  5. Step 5: Solve for x
    x = 88,467,469,429.49/379,890.27
  6. Step 6: Final answer
    x = 232,876.38

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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.