Home / 320,976.10-442,941.53-177,733.07

Finding the Fourth Proportional to 320,976.10, 442,941.53 and 177,733.07

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Solution

The fourth proportional to 320,976.10, 442,941.53 and 177,733.07 is: 245,268.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,976.10 : 442,941.53 = 177,733.07 : x
  2. Step 2: Convert to fraction form
    320,976.10/442,941.53 = 177,733.07/x
  3. Step 3: Cross multiply
    320,976.10x = 442,941.53 × 177,733.07
  4. Step 4: Simplify right side
    320,976.10x = 78,725,355,742.69
  5. Step 5: Solve for x
    x = 78,725,355,742.69/320,976.10
  6. Step 6: Final answer
    x = 245,268.59

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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.