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Finding the Fourth Proportional to 320,792.67, 442,687.28 and 177,544.17

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Solution

The fourth proportional to 320,792.67, 442,687.28 and 177,544.17 is: 245,007.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,792.67 : 442,687.28 = 177,544.17 : x
  2. Step 2: Convert to fraction form
    320,792.67/442,687.28 = 177,544.17/x
  3. Step 3: Cross multiply
    320,792.67x = 442,687.28 × 177,544.17
  4. Step 4: Simplify right side
    320,792.67x = 78,596,544,809.44
  5. Step 5: Solve for x
    x = 78,596,544,809.44/320,792.67
  6. Step 6: Final answer
    x = 245,007.30

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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.