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Finding the Fourth Proportional to 207,891.77, 286,964.37 and 123,008.63

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Solution

The fourth proportional to 207,891.77, 286,964.37 and 123,008.63 is: 169,795.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,891.77 : 286,964.37 = 123,008.63 : x
  2. Step 2: Convert to fraction form
    207,891.77/286,964.37 = 123,008.63/x
  3. Step 3: Cross multiply
    207,891.77x = 286,964.37 × 123,008.63
  4. Step 4: Simplify right side
    207,891.77x = 35,299,092,577.69
  5. Step 5: Solve for x
    x = 35,299,092,577.69/207,891.77
  6. Step 6: Final answer
    x = 169,795.53

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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.