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Finding the Fourth Proportional to 481,686.76, 664,727.75 and 266,840.74

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Solution

The fourth proportional to 481,686.76, 664,727.75 and 266,840.74 is: 368,240.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,686.76 : 664,727.75 = 266,840.74 : x
  2. Step 2: Convert to fraction form
    481,686.76/664,727.75 = 266,840.74/x
  3. Step 3: Cross multiply
    481,686.76x = 664,727.75 × 266,840.74
  4. Step 4: Simplify right side
    481,686.76x = 177,376,444,708.54
  5. Step 5: Solve for x
    x = 177,376,444,708.54/481,686.76
  6. Step 6: Final answer
    x = 368,240.23

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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.