Home / 242,780.42-335,067.20-139,447.00

Finding the Fourth Proportional to 242,780.42, 335,067.20 and 139,447.00

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Solution

The fourth proportional to 242,780.42, 335,067.20 and 139,447.00 is: 192,454.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,780.42 : 335,067.20 = 139,447.00 : x
  2. Step 2: Convert to fraction form
    242,780.42/335,067.20 = 139,447.00/x
  3. Step 3: Cross multiply
    242,780.42x = 335,067.20 × 139,447.00
  4. Step 4: Simplify right side
    242,780.42x = 46,724,116,082.93
  5. Step 5: Solve for x
    x = 46,724,116,082.93/242,780.42
  6. Step 6: Final answer
    x = 192,454.22

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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.