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Finding the Fourth Proportional to 481,809.61, 664,869.48 and 266,936.86

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Solution

The fourth proportional to 481,809.61, 664,869.48 and 266,936.86 is: 368,357.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,809.61 : 664,869.48 = 266,936.86 : x
  2. Step 2: Convert to fraction form
    481,809.61/664,869.48 = 266,936.86/x
  3. Step 3: Cross multiply
    481,809.61x = 664,869.48 × 266,936.86
  4. Step 4: Simplify right side
    481,809.61x = 177,478,167,976.69
  5. Step 5: Solve for x
    x = 177,478,167,976.69/481,809.61
  6. Step 6: Final answer
    x = 368,357.47

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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.