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Finding the Fourth Proportional to 251,143.74, 376,674.21 and 82,666.26

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Solution

The fourth proportional to 251,143.74, 376,674.21 and 82,666.26 is: 123,985.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,143.74 : 376,674.21 = 82,666.26 : x
  2. Step 2: Convert to fraction form
    251,143.74/376,674.21 = 82,666.26/x
  3. Step 3: Cross multiply
    251,143.74x = 376,674.21 × 82,666.26
  4. Step 4: Simplify right side
    251,143.74x = 31,138,248,179.15
  5. Step 5: Solve for x
    x = 31,138,248,179.15/251,143.74
  6. Step 6: Final answer
    x = 123,985.76

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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.