Home / 403,532.37-605,003.31-137,221.38

Finding the Fourth Proportional to 403,532.37, 605,003.31 and 137,221.38

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Solution

The fourth proportional to 403,532.37, 605,003.31 and 137,221.38 is: 205,731.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,532.37 : 605,003.31 = 137,221.38 : x
  2. Step 2: Convert to fraction form
    403,532.37/605,003.31 = 137,221.38/x
  3. Step 3: Cross multiply
    403,532.37x = 605,003.31 × 137,221.38
  4. Step 4: Simplify right side
    403,532.37x = 83,019,389,102.77
  5. Step 5: Solve for x
    x = 83,019,389,102.77/403,532.37
  6. Step 6: Final answer
    x = 205,731.67

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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.