Home / 209,336.98-288,778.52-136,782.29

Finding the Fourth Proportional to 209,336.98, 288,778.52 and 136,782.29

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Solution

The fourth proportional to 209,336.98, 288,778.52 and 136,782.29 is: 188,689.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,336.98 : 288,778.52 = 136,782.29 : x
  2. Step 2: Convert to fraction form
    209,336.98/288,778.52 = 136,782.29/x
  3. Step 3: Cross multiply
    209,336.98x = 288,778.52 × 136,782.29
  4. Step 4: Simplify right side
    209,336.98x = 39,499,785,958.56
  5. Step 5: Solve for x
    x = 39,499,785,958.56/209,336.98
  6. Step 6: Final answer
    x = 188,689.96

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1.5x scale

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.