Home / 192,255.64-288,383.40-139,997.68

Finding the Fourth Proportional to 192,255.64, 288,383.40 and 139,997.68

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Solution

The fourth proportional to 192,255.64, 288,383.40 and 139,997.68 is: 209,996.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,255.64 : 288,383.40 = 139,997.68 : x
  2. Step 2: Convert to fraction form
    192,255.64/288,383.40 = 139,997.68/x
  3. Step 3: Cross multiply
    192,255.64x = 288,383.40 × 139,997.68
  4. Step 4: Simplify right side
    192,255.64x = 40,373,006,950.51
  5. Step 5: Solve for x
    x = 40,373,006,950.51/192,255.64
  6. Step 6: Final answer
    x = 209,996.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.