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Finding the Fourth Proportional to 251,768.63, 377,653.05 and 83,288.94

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Solution

The fourth proportional to 251,768.63, 377,653.05 and 83,288.94 is: 124,933.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,768.63 : 377,653.05 = 83,288.94 : x
  2. Step 2: Convert to fraction form
    251,768.63/377,653.05 = 83,288.94/x
  3. Step 3: Cross multiply
    251,768.63x = 377,653.05 × 83,288.94
  4. Step 4: Simplify right side
    251,768.63x = 31,454,322,222.27
  5. Step 5: Solve for x
    x = 31,454,322,222.27/251,768.63
  6. Step 6: Final answer
    x = 124,933.45

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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.