Home / 245,016.09-338,121.14-143,111.61

Finding the Fourth Proportional to 245,016.09, 338,121.14 and 143,111.61

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Solution

The fourth proportional to 245,016.09, 338,121.14 and 143,111.61 is: 197,493.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,016.09 : 338,121.14 = 143,111.61 : x
  2. Step 2: Convert to fraction form
    245,016.09/338,121.14 = 143,111.61/x
  3. Step 3: Cross multiply
    245,016.09x = 338,121.14 × 143,111.61
  4. Step 4: Simplify right side
    245,016.09x = 48,389,060,004.88
  5. Step 5: Solve for x
    x = 48,389,060,004.88/245,016.09
  6. Step 6: Final answer
    x = 197,493.40

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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.