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Finding the Fourth Proportional to 486,645.19, 729,745.26 and 149,568.37

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Solution

The fourth proportional to 486,645.19, 729,745.26 and 149,568.37 is: 224,284.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,645.19 : 729,745.26 = 149,568.37 : x
  2. Step 2: Convert to fraction form
    486,645.19/729,745.26 = 149,568.37/x
  3. Step 3: Cross multiply
    486,645.19x = 729,745.26 × 149,568.37
  4. Step 4: Simplify right side
    486,645.19x = 109,146,809,053.43
  5. Step 5: Solve for x
    x = 109,146,809,053.43/486,645.19
  6. Step 6: Final answer
    x = 224,284.16

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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.