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Finding the Fourth Proportional to 320,797.88, 442,694.10 and 177,549.32

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Solution

The fourth proportional to 320,797.88, 442,694.10 and 177,549.32 is: 245,014.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,797.88 : 442,694.10 = 177,549.32 : x
  2. Step 2: Convert to fraction form
    320,797.88/442,694.10 = 177,549.32/x
  3. Step 3: Cross multiply
    320,797.88x = 442,694.10 × 177,549.32
  4. Step 4: Simplify right side
    320,797.88x = 78,600,036,423.01
  5. Step 5: Solve for x
    x = 78,600,036,423.01/320,797.88
  6. Step 6: Final answer
    x = 245,014.20

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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.