Home / 486,216.21-729,438.88-166,371.56

Finding the Fourth Proportional to 486,216.21, 729,438.88 and 166,371.56

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Solution

The fourth proportional to 486,216.21, 729,438.88 and 166,371.56 is: 249,596.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,216.21 : 729,438.88 = 166,371.56 : x
  2. Step 2: Convert to fraction form
    486,216.21/729,438.88 = 166,371.56/x
  3. Step 3: Cross multiply
    486,216.21x = 729,438.88 × 166,371.56
  4. Step 4: Simplify right side
    486,216.21x = 121,357,887,477.57
  5. Step 5: Solve for x
    x = 121,357,887,477.57/486,216.21
  6. Step 6: Final answer
    x = 249,596.55

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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.