Home / 320,500.85-442,278.77-177,263.28

Finding the Fourth Proportional to 320,500.85, 442,278.77 and 177,263.28

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Solution

The fourth proportional to 320,500.85, 442,278.77 and 177,263.28 is: 244,616.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,500.85 : 442,278.77 = 177,263.28 : x
  2. Step 2: Convert to fraction form
    320,500.85/442,278.77 = 177,263.28/x
  3. Step 3: Cross multiply
    320,500.85x = 442,278.77 × 177,263.28
  4. Step 4: Simplify right side
    320,500.85x = 78,399,784,558.25
  5. Step 5: Solve for x
    x = 78,399,784,558.25/320,500.85
  6. Step 6: Final answer
    x = 244,616.47

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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.