Home / 320,933.17-442,901.61-177,693.21

Finding the Fourth Proportional to 320,933.17, 442,901.61 and 177,693.21

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Solution

The fourth proportional to 320,933.17, 442,901.61 and 177,693.21 is: 245,224.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,933.17 : 442,901.61 = 177,693.21 : x
  2. Step 2: Convert to fraction form
    320,933.17/442,901.61 = 177,693.21/x
  3. Step 3: Cross multiply
    320,933.17x = 442,901.61 × 177,693.21
  4. Step 4: Simplify right side
    320,933.17x = 78,700,608,795.07
  5. Step 5: Solve for x
    x = 78,700,608,795.07/320,933.17
  6. Step 6: Final answer
    x = 245,224.29

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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.