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Finding the Fourth Proportional to 322,767.57, 445,513.04 and 215,337.34

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Solution

The fourth proportional to 322,767.57, 445,513.04 and 215,337.34 is: 297,228.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,767.57 : 445,513.04 = 215,337.34 : x
  2. Step 2: Convert to fraction form
    322,767.57/445,513.04 = 215,337.34/x
  3. Step 3: Cross multiply
    322,767.57x = 445,513.04 × 215,337.34
  4. Step 4: Simplify right side
    322,767.57x = 95,935,592,968.91
  5. Step 5: Solve for x
    x = 95,935,592,968.91/322,767.57
  6. Step 6: Final answer
    x = 297,228.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.