Home / 215,579.92-323,291.04-82,394.32

Finding the Fourth Proportional to 215,579.92, 323,291.04 and 82,394.32

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Solution

The fourth proportional to 215,579.92, 323,291.04 and 82,394.32 is: 123,561.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,579.92 : 323,291.04 = 82,394.32 : x
  2. Step 2: Convert to fraction form
    215,579.92/323,291.04 = 82,394.32/x
  3. Step 3: Cross multiply
    215,579.92x = 323,291.04 × 82,394.32
  4. Step 4: Simplify right side
    215,579.92x = 26,637,345,402.89
  5. Step 5: Solve for x
    x = 26,637,345,402.89/215,579.92
  6. Step 6: Final answer
    x = 123,561.35

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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.