Home / 228,936.80-342,433.20-205,414.40

Finding the Fourth Proportional to 228,936.80, 342,433.20 and 205,414.40

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Solution

The fourth proportional to 228,936.80, 342,433.20 and 205,414.40 is: 307,249.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,936.80 : 342,433.20 = 205,414.40 : x
  2. Step 2: Convert to fraction form
    228,936.80/342,433.20 = 205,414.40/x
  3. Step 3: Cross multiply
    228,936.80x = 342,433.20 × 205,414.40
  4. Step 4: Simplify right side
    228,936.80x = 70,340,710,318.08
  5. Step 5: Solve for x
    x = 70,340,710,318.08/228,936.80
  6. Step 6: Final answer
    x = 307,249.47

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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.