Home / 245,005.20-338,086.44-137,566.80

Finding the Fourth Proportional to 245,005.20, 338,086.44 and 137,566.80

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Solution

The fourth proportional to 245,005.20, 338,086.44 and 137,566.80 is: 189,830.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,005.20 : 338,086.44 = 137,566.80 : x
  2. Step 2: Convert to fraction form
    245,005.20/338,086.44 = 137,566.80/x
  3. Step 3: Cross multiply
    245,005.20x = 338,086.44 × 137,566.80
  4. Step 4: Simplify right side
    245,005.20x = 46,509,469,674.19
  5. Step 5: Solve for x
    x = 46,509,469,674.19/245,005.20
  6. Step 6: Final answer
    x = 189,830.54

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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.