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Finding the Fourth Proportional to 281,218.31, 388,262.35 and 250,951.60

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Solution

The fourth proportional to 281,218.31, 388,262.35 and 250,951.60 is: 346,474.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,218.31 : 388,262.35 = 250,951.60 : x
  2. Step 2: Convert to fraction form
    281,218.31/388,262.35 = 250,951.60/x
  3. Step 3: Cross multiply
    281,218.31x = 388,262.35 × 250,951.60
  4. Step 4: Simplify right side
    281,218.31x = 97,435,057,608.98
  5. Step 5: Solve for x
    x = 97,435,057,608.98/281,218.31
  6. Step 6: Final answer
    x = 346,474.80

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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.