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Finding the Fourth Proportional to 352,333.72, 486,215.31 and 207,155.86

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Solution

The fourth proportional to 352,333.72, 486,215.31 and 207,155.86 is: 285,872.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,333.72 : 486,215.31 = 207,155.86 : x
  2. Step 2: Convert to fraction form
    352,333.72/486,215.31 = 207,155.86/x
  3. Step 3: Cross multiply
    352,333.72x = 486,215.31 × 207,155.86
  4. Step 4: Simplify right side
    352,333.72x = 100,722,348,257.14
  5. Step 5: Solve for x
    x = 100,722,348,257.14/352,333.72
  6. Step 6: Final answer
    x = 285,872.01

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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.