Home / 312,579.03-431,360.73-169,339.44

Finding the Fourth Proportional to 312,579.03, 431,360.73 and 169,339.44

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Solution

The fourth proportional to 312,579.03, 431,360.73 and 169,339.44 is: 233,689.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,579.03 : 431,360.73 = 169,339.44 : x
  2. Step 2: Convert to fraction form
    312,579.03/431,360.73 = 169,339.44/x
  3. Step 3: Cross multiply
    312,579.03x = 431,360.73 × 169,339.44
  4. Step 4: Simplify right side
    312,579.03x = 73,046,384,456.19
  5. Step 5: Solve for x
    x = 73,046,384,456.19/312,579.03
  6. Step 6: Final answer
    x = 233,689.33

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1.5x scale

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.