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Finding the Fourth Proportional to 251,206.60, 376,226.70 and 171,891.40

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Solution

The fourth proportional to 251,206.60, 376,226.70 and 171,891.40 is: 257,438.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,206.60 : 376,226.70 = 171,891.40 : x
  2. Step 2: Convert to fraction form
    251,206.60/376,226.70 = 171,891.40/x
  3. Step 3: Cross multiply
    251,206.60x = 376,226.70 × 171,891.40
  4. Step 4: Simplify right side
    251,206.60x = 64,670,134,180.38
  5. Step 5: Solve for x
    x = 64,670,134,180.38/251,206.60
  6. Step 6: Final answer
    x = 257,438.04

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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.