Home / 399,193.18-550,804.32-229,394.50

Finding the Fourth Proportional to 399,193.18, 550,804.32 and 229,394.50

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Solution

The fourth proportional to 399,193.18, 550,804.32 and 229,394.50 is: 316,517.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,193.18 : 550,804.32 = 229,394.50 : x
  2. Step 2: Convert to fraction form
    399,193.18/550,804.32 = 229,394.50/x
  3. Step 3: Cross multiply
    399,193.18x = 550,804.32 × 229,394.50
  4. Step 4: Simplify right side
    399,193.18x = 126,351,480,207.23
  5. Step 5: Solve for x
    x = 126,351,480,207.23/399,193.18
  6. Step 6: Final answer
    x = 316,517.13

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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.