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Finding the Fourth Proportional to 401,836.96, 601,945.70 and 266,976.97

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Solution

The fourth proportional to 401,836.96, 601,945.70 and 266,976.97 is: 399,927.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,836.96 : 601,945.70 = 266,976.97 : x
  2. Step 2: Convert to fraction form
    401,836.96/601,945.70 = 266,976.97/x
  3. Step 3: Cross multiply
    401,836.96x = 601,945.70 × 266,976.97
  4. Step 4: Simplify right side
    401,836.96x = 160,705,641,138.47
  5. Step 5: Solve for x
    x = 160,705,641,138.47/401,836.96
  6. Step 6: Final answer
    x = 399,927.47

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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.