Home / 398,811.22-550,337.55-226,705.25

Finding the Fourth Proportional to 398,811.22, 550,337.55 and 226,705.25

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Solution

The fourth proportional to 398,811.22, 550,337.55 and 226,705.25 is: 312,840.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,811.22 : 550,337.55 = 226,705.25 : x
  2. Step 2: Convert to fraction form
    398,811.22/550,337.55 = 226,705.25/x
  3. Step 3: Cross multiply
    398,811.22x = 550,337.55 × 226,705.25
  4. Step 4: Simplify right side
    398,811.22x = 124,764,411,857.14
  5. Step 5: Solve for x
    x = 124,764,411,857.14/398,811.22
  6. Step 6: Final answer
    x = 312,840.78

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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.