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Finding the Fourth Proportional to 251,549.82, 377,361.78 and 83,087.64

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Solution

The fourth proportional to 251,549.82, 377,361.78 and 83,087.64 is: 124,643.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,549.82 : 377,361.78 = 83,087.64 : x
  2. Step 2: Convert to fraction form
    251,549.82/377,361.78 = 83,087.64/x
  3. Step 3: Cross multiply
    251,549.82x = 377,361.78 × 83,087.64
  4. Step 4: Simplify right side
    251,549.82x = 31,354,099,726.40
  5. Step 5: Solve for x
    x = 31,354,099,726.40/251,549.82
  6. Step 6: Final answer
    x = 124,643.70

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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.