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Finding the Fourth Proportional to 226,722.10, 340,083.15 and 215,317.30

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Solution

The fourth proportional to 226,722.10, 340,083.15 and 215,317.30 is: 322,975.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,722.10 : 340,083.15 = 215,317.30 : x
  2. Step 2: Convert to fraction form
    226,722.10/340,083.15 = 215,317.30/x
  3. Step 3: Cross multiply
    226,722.10x = 340,083.15 × 215,317.30
  4. Step 4: Simplify right side
    226,722.10x = 73,225,785,633.50
  5. Step 5: Solve for x
    x = 73,225,785,633.50/226,722.10
  6. Step 6: Final answer
    x = 322,975.95

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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.