Home / 211,949.94-292,290.12-139,224.90

Finding the Fourth Proportional to 211,949.94, 292,290.12 and 139,224.90

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Solution

The fourth proportional to 211,949.94, 292,290.12 and 139,224.90 is: 191,998.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,949.94 : 292,290.12 = 139,224.90 : x
  2. Step 2: Convert to fraction form
    211,949.94/292,290.12 = 139,224.90/x
  3. Step 3: Cross multiply
    211,949.94x = 292,290.12 × 139,224.90
  4. Step 4: Simplify right side
    211,949.94x = 40,694,063,002.01
  5. Step 5: Solve for x
    x = 40,694,063,002.01/211,949.94
  6. Step 6: Final answer
    x = 191,998.46

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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.