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Finding the Fourth Proportional to 207,902.53, 286,979.22 and 123,019.39

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Solution

The fourth proportional to 207,902.53, 286,979.22 and 123,019.39 is: 169,810.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,902.53 : 286,979.22 = 123,019.39 : x
  2. Step 2: Convert to fraction form
    207,902.53/286,979.22 = 123,019.39/x
  3. Step 3: Cross multiply
    207,902.53x = 286,979.22 × 123,019.39
  4. Step 4: Simplify right side
    207,902.53x = 35,304,008,587.08
  5. Step 5: Solve for x
    x = 35,304,008,587.08/207,902.53
  6. Step 6: Final answer
    x = 169,810.38

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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.