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Finding the Fourth Proportional to 320,275.80, 441,961.62 and 177,027.30

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Solution

The fourth proportional to 320,275.80, 441,961.62 and 177,027.30 is: 244,287.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,275.80 : 441,961.62 = 177,027.30 : x
  2. Step 2: Convert to fraction form
    320,275.80/441,961.62 = 177,027.30/x
  3. Step 3: Cross multiply
    320,275.80x = 441,961.62 × 177,027.30
  4. Step 4: Simplify right side
    320,275.80x = 78,239,272,292.23
  5. Step 5: Solve for x
    x = 78,239,272,292.23/320,275.80
  6. Step 6: Final answer
    x = 244,287.18

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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.