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Finding the Fourth Proportional to 215,364.52, 323,092.90 and 65,616.89

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Solution

The fourth proportional to 215,364.52, 323,092.90 and 65,616.89 is: 98,439.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,364.52 : 323,092.90 = 65,616.89 : x
  2. Step 2: Convert to fraction form
    215,364.52/323,092.90 = 65,616.89/x
  3. Step 3: Cross multiply
    215,364.52x = 323,092.90 × 65,616.89
  4. Step 4: Simplify right side
    215,364.52x = 21,200,349,745.64
  5. Step 5: Solve for x
    x = 21,200,349,745.64/215,364.52
  6. Step 6: Final answer
    x = 98,439.38

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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.