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Finding the Fourth Proportional to 250,628.77, 376,129.95 and 100,870.30

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Solution

The fourth proportional to 250,628.77, 376,129.95 and 100,870.30 is: 151,380.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,628.77 : 376,129.95 = 100,870.30 : x
  2. Step 2: Convert to fraction form
    250,628.77/376,129.95 = 100,870.30/x
  3. Step 3: Cross multiply
    250,628.77x = 376,129.95 × 100,870.30
  4. Step 4: Simplify right side
    250,628.77x = 37,940,340,895.49
  5. Step 5: Solve for x
    x = 37,940,340,895.49/250,628.77
  6. Step 6: Final answer
    x = 151,380.63

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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.