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Finding the Fourth Proportional to 250,471.32, 345,476.99 and 154,921.29

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Solution

The fourth proportional to 250,471.32, 345,476.99 and 154,921.29 is: 213,684.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,471.32 : 345,476.99 = 154,921.29 : x
  2. Step 2: Convert to fraction form
    250,471.32/345,476.99 = 154,921.29/x
  3. Step 3: Cross multiply
    250,471.32x = 345,476.99 × 154,921.29
  4. Step 4: Simplify right side
    250,471.32x = 53,521,740,181.51
  5. Step 5: Solve for x
    x = 53,521,740,181.51/250,471.32
  6. Step 6: Final answer
    x = 213,684.11

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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.