Home / 320,808.96-442,670.02-177,568.66

Finding the Fourth Proportional to 320,808.96, 442,670.02 and 177,568.66

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Solution

The fourth proportional to 320,808.96, 442,670.02 and 177,568.66 is: 245,019.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,808.96 : 442,670.02 = 177,568.66 : x
  2. Step 2: Convert to fraction form
    320,808.96/442,670.02 = 177,568.66/x
  3. Step 3: Cross multiply
    320,808.96x = 442,670.02 × 177,568.66
  4. Step 4: Simplify right side
    320,808.96x = 78,604,322,273.57
  5. Step 5: Solve for x
    x = 78,604,322,273.57/320,808.96
  6. Step 6: Final answer
    x = 245,019.10

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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.