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Finding the Fourth Proportional to 263,998.44, 364,320.45 and 143,139.42

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Solution

The fourth proportional to 263,998.44, 364,320.45 and 143,139.42 is: 197,533.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,998.44 : 364,320.45 = 143,139.42 : x
  2. Step 2: Convert to fraction form
    263,998.44/364,320.45 = 143,139.42/x
  3. Step 3: Cross multiply
    263,998.44x = 364,320.45 × 143,139.42
  4. Step 4: Simplify right side
    263,998.44x = 52,148,617,907.14
  5. Step 5: Solve for x
    x = 52,148,617,907.14/263,998.44
  6. Step 6: Final answer
    x = 197,533.81

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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.