Home / 399,194.18-550,805.70-229,395.50

Finding the Fourth Proportional to 399,194.18, 550,805.70 and 229,395.50

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Solution

The fourth proportional to 399,194.18, 550,805.70 and 229,395.50 is: 316,518.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,194.18 : 550,805.70 = 229,395.50 : x
  2. Step 2: Convert to fraction form
    399,194.18/550,805.70 = 229,395.50/x
  3. Step 3: Cross multiply
    399,194.18x = 550,805.70 × 229,395.50
  4. Step 4: Simplify right side
    399,194.18x = 126,352,348,954.35
  5. Step 5: Solve for x
    x = 126,352,348,954.35/399,194.18
  6. Step 6: Final answer
    x = 316,518.51

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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.