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Finding the Fourth Proportional to 263,796.20, 395,864.40 and 145,552.40

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Solution

The fourth proportional to 263,796.20, 395,864.40 and 145,552.40 is: 218,422.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,796.20 : 395,864.40 = 145,552.40 : x
  2. Step 2: Convert to fraction form
    263,796.20/395,864.40 = 145,552.40/x
  3. Step 3: Cross multiply
    263,796.20x = 395,864.40 × 145,552.40
  4. Step 4: Simplify right side
    263,796.20x = 57,619,013,494.56
  5. Step 5: Solve for x
    x = 57,619,013,494.56/263,796.20
  6. Step 6: Final answer
    x = 218,422.45

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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.