Home / 320,426.35-442,179.61-177,181.50

Finding the Fourth Proportional to 320,426.35, 442,179.61 and 177,181.50

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Solution

The fourth proportional to 320,426.35, 442,179.61 and 177,181.50 is: 244,505.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,426.35 : 442,179.61 = 177,181.50 : x
  2. Step 2: Convert to fraction form
    320,426.35/442,179.61 = 177,181.50/x
  3. Step 3: Cross multiply
    320,426.35x = 442,179.61 × 177,181.50
  4. Step 4: Simplify right side
    320,426.35x = 78,346,046,569.22
  5. Step 5: Solve for x
    x = 78,346,046,569.22/320,426.35
  6. Step 6: Final answer
    x = 244,505.63

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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.