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Finding the Fourth Proportional to 251,116.20, 376,674.30 and 84,904.20

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Solution

The fourth proportional to 251,116.20, 376,674.30 and 84,904.20 is: 127,356.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,116.20 : 376,674.30 = 84,904.20 : x
  2. Step 2: Convert to fraction form
    251,116.20/376,674.30 = 84,904.20/x
  3. Step 3: Cross multiply
    251,116.20x = 376,674.30 × 84,904.20
  4. Step 4: Simplify right side
    251,116.20x = 31,981,230,102.06
  5. Step 5: Solve for x
    x = 31,981,230,102.06/251,116.20
  6. Step 6: Final answer
    x = 127,356.30

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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.