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Finding the Fourth Proportional to 266,519.61, 367,796.21 and 145,660.86

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Solution

The fourth proportional to 266,519.61, 367,796.21 and 145,660.86 is: 201,011.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,519.61 : 367,796.21 = 145,660.86 : x
  2. Step 2: Convert to fraction form
    266,519.61/367,796.21 = 145,660.86/x
  3. Step 3: Cross multiply
    266,519.61x = 367,796.21 × 145,660.86
  4. Step 4: Simplify right side
    266,519.61x = 53,573,511,525.04
  5. Step 5: Solve for x
    x = 53,573,511,525.04/266,519.61
  6. Step 6: Final answer
    x = 201,011.52

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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.