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Finding the Fourth Proportional to 269,398.50, 371,803.68 and 154,713.12

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Solution

The fourth proportional to 269,398.50, 371,803.68 and 154,713.12 is: 213,523.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,398.50 : 371,803.68 = 154,713.12 : x
  2. Step 2: Convert to fraction form
    269,398.50/371,803.68 = 154,713.12/x
  3. Step 3: Cross multiply
    269,398.50x = 371,803.68 × 154,713.12
  4. Step 4: Simplify right side
    269,398.50x = 57,522,907,360.28
  5. Step 5: Solve for x
    x = 57,522,907,360.28/269,398.50
  6. Step 6: Final answer
    x = 213,523.49

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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.