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Finding the Fourth Proportional to 221,323.98, 331,888.05 and 63,515.82

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Solution

The fourth proportional to 221,323.98, 331,888.05 and 63,515.82 is: 95,245.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,323.98 : 331,888.05 = 63,515.82 : x
  2. Step 2: Convert to fraction form
    221,323.98/331,888.05 = 63,515.82/x
  3. Step 3: Cross multiply
    221,323.98x = 331,888.05 × 63,515.82
  4. Step 4: Simplify right side
    221,323.98x = 21,080,141,643.95
  5. Step 5: Solve for x
    x = 21,080,141,643.95/221,323.98
  6. Step 6: Final answer
    x = 95,245.63

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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.