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Finding the Fourth Proportional to 267,076.20, 399,836.70 and 259,300.20

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Solution

The fourth proportional to 267,076.20, 399,836.70 and 259,300.20 is: 388,195.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,076.20 : 399,836.70 = 259,300.20 : x
  2. Step 2: Convert to fraction form
    267,076.20/399,836.70 = 259,300.20/x
  3. Step 3: Cross multiply
    267,076.20x = 399,836.70 × 259,300.20
  4. Step 4: Simplify right side
    267,076.20x = 103,677,736,277.34
  5. Step 5: Solve for x
    x = 103,677,736,277.34/267,076.20
  6. Step 6: Final answer
    x = 388,195.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.