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Finding the Fourth Proportional to 403,740.59, 605,704.67 and 137,503.37

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Solution

The fourth proportional to 403,740.59, 605,704.67 and 137,503.37 is: 206,287.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,740.59 : 605,704.67 = 137,503.37 : x
  2. Step 2: Convert to fraction form
    403,740.59/605,704.67 = 137,503.37/x
  3. Step 3: Cross multiply
    403,740.59x = 605,704.67 × 137,503.37
  4. Step 4: Simplify right side
    403,740.59x = 83,286,432,662.22
  5. Step 5: Solve for x
    x = 83,286,432,662.22/403,740.59
  6. Step 6: Final answer
    x = 206,287.00

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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.