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Finding the Fourth Proportional to 269,253.76, 403,880.62 and 72,261.76

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Solution

The fourth proportional to 269,253.76, 403,880.62 and 72,261.76 is: 108,392.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,253.76 : 403,880.62 = 72,261.76 : x
  2. Step 2: Convert to fraction form
    269,253.76/403,880.62 = 72,261.76/x
  3. Step 3: Cross multiply
    269,253.76x = 403,880.62 × 72,261.76
  4. Step 4: Simplify right side
    269,253.76x = 29,185,124,431.09
  5. Step 5: Solve for x
    x = 29,185,124,431.09/269,253.76
  6. Step 6: Final answer
    x = 108,392.63

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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.