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Finding the Fourth Proportional to 307,745.97, 424,760.30 and 180,462.57

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Solution

The fourth proportional to 307,745.97, 424,760.30 and 180,462.57 is: 249,079.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,745.97 : 424,760.30 = 180,462.57 : x
  2. Step 2: Convert to fraction form
    307,745.97/424,760.30 = 180,462.57/x
  3. Step 3: Cross multiply
    307,745.97x = 424,760.30 × 180,462.57
  4. Step 4: Simplify right side
    307,745.97x = 76,653,334,469.66
  5. Step 5: Solve for x
    x = 76,653,334,469.66/307,745.97
  6. Step 6: Final answer
    x = 249,079.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.