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Finding the Fourth Proportional to 215,257.62, 322,935.57 and 65,519.13

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Solution

The fourth proportional to 215,257.62, 322,935.57 and 65,519.13 is: 98,293.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,257.62 : 322,935.57 = 65,519.13 : x
  2. Step 2: Convert to fraction form
    215,257.62/322,935.57 = 65,519.13/x
  3. Step 3: Cross multiply
    215,257.62x = 322,935.57 × 65,519.13
  4. Step 4: Simplify right side
    215,257.62x = 21,158,457,592.45
  5. Step 5: Solve for x
    x = 21,158,457,592.45/215,257.62
  6. Step 6: Final answer
    x = 98,293.65

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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.