Home / 403,740.46-605,704.48-137,503.25

Finding the Fourth Proportional to 403,740.46, 605,704.48 and 137,503.25

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Solution

The fourth proportional to 403,740.46, 605,704.48 and 137,503.25 is: 206,286.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,740.46 : 605,704.48 = 137,503.25 : x
  2. Step 2: Convert to fraction form
    403,740.46/605,704.48 = 137,503.25/x
  3. Step 3: Cross multiply
    403,740.46x = 605,704.48 × 137,503.25
  4. Step 4: Simplify right side
    403,740.46x = 83,286,331,167.28
  5. Step 5: Solve for x
    x = 83,286,331,167.28/403,740.46
  6. Step 6: Final answer
    x = 206,286.81

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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.