Home / 398,723.09-550,225.67-226,659.85

Finding the Fourth Proportional to 398,723.09, 550,225.67 and 226,659.85

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Solution

The fourth proportional to 398,723.09, 550,225.67 and 226,659.85 is: 312,783.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,723.09 : 550,225.67 = 226,659.85 : x
  2. Step 2: Convert to fraction form
    398,723.09/550,225.67 = 226,659.85/x
  3. Step 3: Cross multiply
    398,723.09x = 550,225.67 × 226,659.85
  4. Step 4: Simplify right side
    398,723.09x = 124,714,065,319.49
  5. Step 5: Solve for x
    x = 124,714,065,319.49/398,723.09
  6. Step 6: Final answer
    x = 312,783.66

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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.