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Finding the Fourth Proportional to 559,964.20, 839,946.30 and 205,232.80

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Solution

The fourth proportional to 559,964.20, 839,946.30 and 205,232.80 is: 307,849.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,964.20 : 839,946.30 = 205,232.80 : x
  2. Step 2: Convert to fraction form
    559,964.20/839,946.30 = 205,232.80/x
  3. Step 3: Cross multiply
    559,964.20x = 839,946.30 × 205,232.80
  4. Step 4: Simplify right side
    559,964.20x = 172,384,530,998.64
  5. Step 5: Solve for x
    x = 172,384,530,998.64/559,964.20
  6. Step 6: Final answer
    x = 307,849.20

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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.