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Finding the Fourth Proportional to 266,833.66, 368,227.46 and 145,978.42

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Solution

The fourth proportional to 266,833.66, 368,227.46 and 145,978.42 is: 201,448.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,833.66 : 368,227.46 = 145,978.42 : x
  2. Step 2: Convert to fraction form
    266,833.66/368,227.46 = 145,978.42/x
  3. Step 3: Cross multiply
    266,833.66x = 368,227.46 × 145,978.42
  4. Step 4: Simplify right side
    266,833.66x = 53,753,262,811.41
  5. Step 5: Solve for x
    x = 53,753,262,811.41/266,833.66
  6. Step 6: Final answer
    x = 201,448.58

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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.