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Finding the Fourth Proportional to 481,713, 664,801.40 and 266,872.92

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Solution

The fourth proportional to 481,713, 664,801.40 and 266,872.92 is: 368,305.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,713 : 664,801.40 = 266,872.92 : x
  2. Step 2: Convert to fraction form
    481,713/664,801.40 = 266,872.92/x
  3. Step 3: Cross multiply
    481,713x = 664,801.40 × 266,872.92
  4. Step 4: Simplify right side
    481,713x = 177,417,490,838.09
  5. Step 5: Solve for x
    x = 177,417,490,838.09/481,713
  6. Step 6: Final answer
    x = 368,305.38

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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.