Home / 215,960.49-323,991.77-97,631.64

Finding the Fourth Proportional to 215,960.49, 323,991.77 and 97,631.64

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Solution

The fourth proportional to 215,960.49, 323,991.77 and 97,631.64 is: 146,470.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,960.49 : 323,991.77 = 97,631.64 : x
  2. Step 2: Convert to fraction form
    215,960.49/323,991.77 = 97,631.64/x
  3. Step 3: Cross multiply
    215,960.49x = 323,991.77 × 97,631.64
  4. Step 4: Simplify right side
    215,960.49x = 31,631,847,363.44
  5. Step 5: Solve for x
    x = 31,631,847,363.44/215,960.49
  6. Step 6: Final answer
    x = 146,470.53

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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.