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Finding the Fourth Proportional to 207,245.43, 285,998.73 and 117,821.43

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Solution

The fourth proportional to 207,245.43, 285,998.73 and 117,821.43 is: 162,593.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,245.43 : 285,998.73 = 117,821.43 : x
  2. Step 2: Convert to fraction form
    207,245.43/285,998.73 = 117,821.43/x
  3. Step 3: Cross multiply
    207,245.43x = 285,998.73 × 117,821.43
  4. Step 4: Simplify right side
    207,245.43x = 33,696,779,346.78
  5. Step 5: Solve for x
    x = 33,696,779,346.78/207,245.43
  6. Step 6: Final answer
    x = 162,593.59

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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.