Home / 320,390.46-442,131.99-177,156.54

Finding the Fourth Proportional to 320,390.46, 442,131.99 and 177,156.54

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Solution

The fourth proportional to 320,390.46, 442,131.99 and 177,156.54 is: 244,472.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,390.46 : 442,131.99 = 177,156.54 : x
  2. Step 2: Convert to fraction form
    320,390.46/442,131.99 = 177,156.54/x
  3. Step 3: Cross multiply
    320,390.46x = 442,131.99 × 177,156.54
  4. Step 4: Simplify right side
    320,390.46x = 78,326,573,571.71
  5. Step 5: Solve for x
    x = 78,326,573,571.71/320,390.46
  6. Step 6: Final answer
    x = 244,472.24

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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.