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Finding the Fourth Proportional to 486,615.66, 729,993.29 and 149,684.73

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Solution

The fourth proportional to 486,615.66, 729,993.29 and 149,684.73 is: 224,548.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,615.66 : 729,993.29 = 149,684.73 : x
  2. Step 2: Convert to fraction form
    486,615.66/729,993.29 = 149,684.73/x
  3. Step 3: Cross multiply
    486,615.66x = 729,993.29 × 149,684.73
  4. Step 4: Simplify right side
    486,615.66x = 109,268,848,515.46
  5. Step 5: Solve for x
    x = 109,268,848,515.46/486,615.66
  6. Step 6: Final answer
    x = 224,548.57

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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.