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Finding the Fourth Proportional to 266,857.86, 368,203.56 and 159,406.86

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Solution

The fourth proportional to 266,857.86, 368,203.56 and 159,406.86 is: 219,945.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,857.86 : 368,203.56 = 159,406.86 : x
  2. Step 2: Convert to fraction form
    266,857.86/368,203.56 = 159,406.86/x
  3. Step 3: Cross multiply
    266,857.86x = 368,203.56 × 159,406.86
  4. Step 4: Simplify right side
    266,857.86x = 58,694,173,340.42
  5. Step 5: Solve for x
    x = 58,694,173,340.42/266,857.86
  6. Step 6: Final answer
    x = 219,945.45

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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.