Home / 209,976.39-314,965.79-52,204.85

Finding the Fourth Proportional to 209,976.39, 314,965.79 and 52,204.85

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Solution

The fourth proportional to 209,976.39, 314,965.79 and 52,204.85 is: 78,307.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,976.39 : 314,965.79 = 52,204.85 : x
  2. Step 2: Convert to fraction form
    209,976.39/314,965.79 = 52,204.85/x
  3. Step 3: Cross multiply
    209,976.39x = 314,965.79 × 52,204.85
  4. Step 4: Simplify right side
    209,976.39x = 16,442,739,986.23
  5. Step 5: Solve for x
    x = 16,442,739,986.23/209,976.39
  6. Step 6: Final answer
    x = 78,307.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.