Home / 313,029.42-431,981.35-169,789.46

Finding the Fourth Proportional to 313,029.42, 431,981.35 and 169,789.46

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Solution

The fourth proportional to 313,029.42, 431,981.35 and 169,789.46 is: 234,309.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,029.42 : 431,981.35 = 169,789.46 : x
  2. Step 2: Convert to fraction form
    313,029.42/431,981.35 = 169,789.46/x
  3. Step 3: Cross multiply
    313,029.42x = 431,981.35 × 169,789.46
  4. Step 4: Simplify right side
    313,029.42x = 73,345,879,182.12
  5. Step 5: Solve for x
    x = 73,345,879,182.12/313,029.42
  6. Step 6: Final answer
    x = 234,309.86

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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.