Home / 433,190.70-649,688.85-208,436.36

Finding the Fourth Proportional to 433,190.70, 649,688.85 and 208,436.36

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Solution

The fourth proportional to 433,190.70, 649,688.85 and 208,436.36 is: 312,607.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,190.70 : 649,688.85 = 208,436.36 : x
  2. Step 2: Convert to fraction form
    433,190.70/649,688.85 = 208,436.36/x
  3. Step 3: Cross multiply
    433,190.70x = 649,688.85 × 208,436.36
  4. Step 4: Simplify right side
    433,190.70x = 135,418,775,778.14
  5. Step 5: Solve for x
    x = 135,418,775,778.14/433,190.70
  6. Step 6: Final answer
    x = 312,607.76

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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.