Home / 399,669.08-599,930.39-172,077.41

Finding the Fourth Proportional to 399,669.08, 599,930.39 and 172,077.41

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Solution

The fourth proportional to 399,669.08, 599,930.39 and 172,077.41 is: 258,299.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,669.08 : 599,930.39 = 172,077.41 : x
  2. Step 2: Convert to fraction form
    399,669.08/599,930.39 = 172,077.41/x
  3. Step 3: Cross multiply
    399,669.08x = 599,930.39 × 172,077.41
  4. Step 4: Simplify right side
    399,669.08x = 103,234,467,691.49
  5. Step 5: Solve for x
    x = 103,234,467,691.49/399,669.08
  6. Step 6: Final answer
    x = 258,299.86

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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.