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Finding the Fourth Proportional to 250,429.76, 345,564.96 and 154,998.08

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Solution

The fourth proportional to 250,429.76, 345,564.96 and 154,998.08 is: 213,879.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,429.76 : 345,564.96 = 154,998.08 : x
  2. Step 2: Convert to fraction form
    250,429.76/345,564.96 = 154,998.08/x
  3. Step 3: Cross multiply
    250,429.76x = 345,564.96 × 154,998.08
  4. Step 4: Simplify right side
    250,429.76x = 53,561,905,315.28
  5. Step 5: Solve for x
    x = 53,561,905,315.28/250,429.76
  6. Step 6: Final answer
    x = 213,879.95

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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.