Home / 320,965.90-442,927.54-177,722.86

Finding the Fourth Proportional to 320,965.90, 442,927.54 and 177,722.86

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Solution

The fourth proportional to 320,965.90, 442,927.54 and 177,722.86 is: 245,254.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,965.90 : 442,927.54 = 177,722.86 : x
  2. Step 2: Convert to fraction form
    320,965.90/442,927.54 = 177,722.86/x
  3. Step 3: Cross multiply
    320,965.90x = 442,927.54 × 177,722.86
  4. Step 4: Simplify right side
    320,965.90x = 78,718,349,181.56
  5. Step 5: Solve for x
    x = 78,718,349,181.56/320,965.90
  6. Step 6: Final answer
    x = 245,254.56

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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.