Home / 320,970.91-442,934.43-177,727.87

Finding the Fourth Proportional to 320,970.91, 442,934.43 and 177,727.87

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Solution

The fourth proportional to 320,970.91, 442,934.43 and 177,727.87 is: 245,261.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,970.91 : 442,934.43 = 177,727.87 : x
  2. Step 2: Convert to fraction form
    320,970.91/442,934.43 = 177,727.87/x
  3. Step 3: Cross multiply
    320,970.91x = 442,934.43 × 177,727.87
  4. Step 4: Simplify right side
    320,970.91x = 78,721,792,793.56
  5. Step 5: Solve for x
    x = 78,721,792,793.56/320,970.91
  6. Step 6: Final answer
    x = 245,261.46

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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.