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Finding the Fourth Proportional to 559,365.30, 839,169.48 and 204,378.78

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Solution

The fourth proportional to 559,365.30, 839,169.48 and 204,378.78 is: 306,612.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,365.30 : 839,169.48 = 204,378.78 : x
  2. Step 2: Convert to fraction form
    559,365.30/839,169.48 = 204,378.78/x
  3. Step 3: Cross multiply
    559,365.30x = 839,169.48 × 204,378.78
  4. Step 4: Simplify right side
    559,365.30x = 171,508,434,535.63
  5. Step 5: Solve for x
    x = 171,508,434,535.63/559,365.30
  6. Step 6: Final answer
    x = 306,612.57

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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.