Home / 643,399.98-965,248.23-222,675.86

Finding the Fourth Proportional to 643,399.98, 965,248.23 and 222,675.86

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Solution

The fourth proportional to 643,399.98, 965,248.23 and 222,675.86 is: 334,065.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,399.98 : 965,248.23 = 222,675.86 : x
  2. Step 2: Convert to fraction form
    643,399.98/965,248.23 = 222,675.86/x
  3. Step 3: Cross multiply
    643,399.98x = 965,248.23 × 222,675.86
  4. Step 4: Simplify right side
    643,399.98x = 214,937,474,902.49
  5. Step 5: Solve for x
    x = 214,937,474,902.49/643,399.98
  6. Step 6: Final answer
    x = 334,065.09

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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.