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Finding the Fourth Proportional to 481,638.66, 664,661.35 and 266,792.64

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Solution

The fourth proportional to 481,638.66, 664,661.35 and 266,792.64 is: 368,173.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,638.66 : 664,661.35 = 266,792.64 : x
  2. Step 2: Convert to fraction form
    481,638.66/664,661.35 = 266,792.64/x
  3. Step 3: Cross multiply
    481,638.66x = 664,661.35 × 266,792.64
  4. Step 4: Simplify right side
    481,638.66x = 177,326,752,612.77
  5. Step 5: Solve for x
    x = 177,326,752,612.77/481,638.66
  6. Step 6: Final answer
    x = 368,173.84

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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.