Home / 221,304.89-331,949.45-71,541.25

Finding the Fourth Proportional to 221,304.89, 331,949.45 and 71,541.25

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Solution

The fourth proportional to 221,304.89, 331,949.45 and 71,541.25 is: 107,309.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,304.89 : 331,949.45 = 71,541.25 : x
  2. Step 2: Convert to fraction form
    221,304.89/331,949.45 = 71,541.25/x
  3. Step 3: Cross multiply
    221,304.89x = 331,949.45 × 71,541.25
  4. Step 4: Simplify right side
    221,304.89x = 23,748,076,572.36
  5. Step 5: Solve for x
    x = 23,748,076,572.36/221,304.89
  6. Step 6: Final answer
    x = 107,309.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.