Home / 320,975.49-442,940.75-177,732.45

Finding the Fourth Proportional to 320,975.49, 442,940.75 and 177,732.45

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Solution

The fourth proportional to 320,975.49, 442,940.75 and 177,732.45 is: 245,267.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,975.49 : 442,940.75 = 177,732.45 : x
  2. Step 2: Convert to fraction form
    320,975.49/442,940.75 = 177,732.45/x
  3. Step 3: Cross multiply
    320,975.49x = 442,940.75 × 177,732.45
  4. Step 4: Simplify right side
    320,975.49x = 78,724,943,813.68
  5. Step 5: Solve for x
    x = 78,724,943,813.68/320,975.49
  6. Step 6: Final answer
    x = 245,267.77

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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.