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Finding the Fourth Proportional to 215,235.58, 322,864.85 and 65,464.42

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Solution

The fourth proportional to 215,235.58, 322,864.85 and 65,464.42 is: 98,200.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,235.58 : 322,864.85 = 65,464.42 : x
  2. Step 2: Convert to fraction form
    215,235.58/322,864.85 = 65,464.42/x
  3. Step 3: Cross multiply
    215,235.58x = 322,864.85 × 65,464.42
  4. Step 4: Simplify right side
    215,235.58x = 21,136,160,143.64
  5. Step 5: Solve for x
    x = 21,136,160,143.64/215,235.58
  6. Step 6: Final answer
    x = 98,200.12

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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.