Home / 309,245.11-426,782.86-181,945.31

Finding the Fourth Proportional to 309,245.11, 426,782.86 and 181,945.31

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Solution

The fourth proportional to 309,245.11, 426,782.86 and 181,945.31 is: 251,099.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,245.11 : 426,782.86 = 181,945.31 : x
  2. Step 2: Convert to fraction form
    309,245.11/426,782.86 = 181,945.31/x
  3. Step 3: Cross multiply
    309,245.11x = 426,782.86 × 181,945.31
  4. Step 4: Simplify right side
    309,245.11x = 77,651,137,176.61
  5. Step 5: Solve for x
    x = 77,651,137,176.61/309,245.11
  6. Step 6: Final answer
    x = 251,099.00

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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.