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Finding the Fourth Proportional to 214,612.58, 321,792.42 and 81,502.22

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Solution

The fourth proportional to 214,612.58, 321,792.42 and 81,502.22 is: 122,205.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,612.58 : 321,792.42 = 81,502.22 : x
  2. Step 2: Convert to fraction form
    214,612.58/321,792.42 = 81,502.22/x
  3. Step 3: Cross multiply
    214,612.58x = 321,792.42 × 81,502.22
  4. Step 4: Simplify right side
    214,612.58x = 26,226,796,609.17
  5. Step 5: Solve for x
    x = 26,226,796,609.17/214,612.58
  6. Step 6: Final answer
    x = 122,205.31

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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.