Home / 320,970.42-442,933.74-177,727.38

Finding the Fourth Proportional to 320,970.42, 442,933.74 and 177,727.38

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Solution

The fourth proportional to 320,970.42, 442,933.74 and 177,727.38 is: 245,260.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,970.42 : 442,933.74 = 177,727.38 : x
  2. Step 2: Convert to fraction form
    320,970.42/442,933.74 = 177,727.38/x
  3. Step 3: Cross multiply
    320,970.42x = 442,933.74 × 177,727.38
  4. Step 4: Simplify right side
    320,970.42x = 78,721,453,123.80
  5. Step 5: Solve for x
    x = 78,721,453,123.80/320,970.42
  6. Step 6: Final answer
    x = 245,260.77

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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.