Home / 309,614.98-427,087.21-194,711.37

Finding the Fourth Proportional to 309,614.98, 427,087.21 and 194,711.37

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Solution

The fourth proportional to 309,614.98, 427,087.21 and 194,711.37 is: 268,587.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,614.98 : 427,087.21 = 194,711.37 : x
  2. Step 2: Convert to fraction form
    309,614.98/427,087.21 = 194,711.37/x
  3. Step 3: Cross multiply
    309,614.98x = 427,087.21 × 194,711.37
  4. Step 4: Simplify right side
    309,614.98x = 83,158,735,768.58
  5. Step 5: Solve for x
    x = 83,158,735,768.58/309,614.98
  6. Step 6: Final answer
    x = 268,587.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.