Home / 215,539.34-323,317.92-82,429.34

Finding the Fourth Proportional to 215,539.34, 323,317.92 and 82,429.34

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Solution

The fourth proportional to 215,539.34, 323,317.92 and 82,429.34 is: 123,647.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,539.34 : 323,317.92 = 82,429.34 : x
  2. Step 2: Convert to fraction form
    215,539.34/323,317.92 = 82,429.34/x
  3. Step 3: Cross multiply
    215,539.34x = 323,317.92 × 82,429.34
  4. Step 4: Simplify right side
    215,539.34x = 26,650,882,755.77
  5. Step 5: Solve for x
    x = 26,650,882,755.77/215,539.34
  6. Step 6: Final answer
    x = 123,647.42

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1.5x scale

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.