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Finding the Fourth Proportional to 215,299.65, 322,912.22 and 65,503.65

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Solution

The fourth proportional to 215,299.65, 322,912.22 and 65,503.65 is: 98,244.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,299.65 : 322,912.22 = 65,503.65 : x
  2. Step 2: Convert to fraction form
    215,299.65/322,912.22 = 65,503.65/x
  3. Step 3: Cross multiply
    215,299.65x = 322,912.22 × 65,503.65
  4. Step 4: Simplify right side
    215,299.65x = 21,151,928,712.08
  5. Step 5: Solve for x
    x = 21,151,928,712.08/215,299.65
  6. Step 6: Final answer
    x = 98,244.14

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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.