Home / 218,257.43-301,192.22-122,764.19

Finding the Fourth Proportional to 218,257.43, 301,192.22 and 122,764.19

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Solution

The fourth proportional to 218,257.43, 301,192.22 and 122,764.19 is: 169,412.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,257.43 : 301,192.22 = 122,764.19 : x
  2. Step 2: Convert to fraction form
    218,257.43/301,192.22 = 122,764.19/x
  3. Step 3: Cross multiply
    218,257.43x = 301,192.22 × 122,764.19
  4. Step 4: Simplify right side
    218,257.43x = 36,975,617,416.64
  5. Step 5: Solve for x
    x = 36,975,617,416.64/218,257.43
  6. Step 6: Final answer
    x = 169,412.87

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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.