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Finding the Fourth Proportional to 219,891.32, 303,424.43 and 123,100.48

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Solution

The fourth proportional to 219,891.32, 303,424.43 and 123,100.48 is: 169,864.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,891.32 : 303,424.43 = 123,100.48 : x
  2. Step 2: Convert to fraction form
    219,891.32/303,424.43 = 123,100.48/x
  3. Step 3: Cross multiply
    219,891.32x = 303,424.43 × 123,100.48
  4. Step 4: Simplify right side
    219,891.32x = 37,351,691,602.66
  5. Step 5: Solve for x
    x = 37,351,691,602.66/219,891.32
  6. Step 6: Final answer
    x = 169,864.33

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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.