Home / 320,830.08-442,739.16-177,581.76

Finding the Fourth Proportional to 320,830.08, 442,739.16 and 177,581.76

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Solution

The fourth proportional to 320,830.08, 442,739.16 and 177,581.76 is: 245,059.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,830.08 : 442,739.16 = 177,581.76 : x
  2. Step 2: Convert to fraction form
    320,830.08/442,739.16 = 177,581.76/x
  3. Step 3: Cross multiply
    320,830.08x = 442,739.16 × 177,581.76
  4. Step 4: Simplify right side
    320,830.08x = 78,622,399,253.72
  5. Step 5: Solve for x
    x = 78,622,399,253.72/320,830.08
  6. Step 6: Final answer
    x = 245,059.31

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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.