Home / 457,237.80-686,299.38-220,746.42

Finding the Fourth Proportional to 457,237.80, 686,299.38 and 220,746.42

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Solution

The fourth proportional to 457,237.80, 686,299.38 and 220,746.42 is: 331,333.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,237.80 : 686,299.38 = 220,746.42 : x
  2. Step 2: Convert to fraction form
    457,237.80/686,299.38 = 220,746.42/x
  3. Step 3: Cross multiply
    457,237.80x = 686,299.38 × 220,746.42
  4. Step 4: Simplify right side
    457,237.80x = 151,498,131,183.22
  5. Step 5: Solve for x
    x = 151,498,131,183.22/457,237.80
  6. Step 6: Final answer
    x = 331,333.35

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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.