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Finding the Fourth Proportional to 245,364.22, 338,620.47 and 149,888.91

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Solution

The fourth proportional to 245,364.22, 338,620.47 and 149,888.91 is: 206,857.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,364.22 : 338,620.47 = 149,888.91 : x
  2. Step 2: Convert to fraction form
    245,364.22/338,620.47 = 149,888.91/x
  3. Step 3: Cross multiply
    245,364.22x = 338,620.47 × 149,888.91
  4. Step 4: Simplify right side
    245,364.22x = 50,755,453,859.73
  5. Step 5: Solve for x
    x = 50,755,453,859.73/245,364.22
  6. Step 6: Final answer
    x = 206,857.60

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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.