Home / 208,228.20-312,342.30-199,370.85

Finding the Fourth Proportional to 208,228.20, 312,342.30 and 199,370.85

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Solution

The fourth proportional to 208,228.20, 312,342.30 and 199,370.85 is: 299,056.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,228.20 : 312,342.30 = 199,370.85 : x
  2. Step 2: Convert to fraction form
    208,228.20/312,342.30 = 199,370.85/x
  3. Step 3: Cross multiply
    208,228.20x = 312,342.30 × 199,370.85
  4. Step 4: Simplify right side
    208,228.20x = 62,271,949,841.96
  5. Step 5: Solve for x
    x = 62,271,949,841.96/208,228.20
  6. Step 6: Final answer
    x = 299,056.28

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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.