Home / 398,934.18-550,474.59-229,168.26

Finding the Fourth Proportional to 398,934.18, 550,474.59 and 229,168.26

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Solution

The fourth proportional to 398,934.18, 550,474.59 and 229,168.26 is: 316,220.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,934.18 : 550,474.59 = 229,168.26 : x
  2. Step 2: Convert to fraction form
    398,934.18/550,474.59 = 229,168.26/x
  3. Step 3: Cross multiply
    398,934.18x = 550,474.59 × 229,168.26
  4. Step 4: Simplify right side
    398,934.18x = 126,151,303,964.51
  5. Step 5: Solve for x
    x = 126,151,303,964.51/398,934.18
  6. Step 6: Final answer
    x = 316,220.85

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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.