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Finding the Fourth Proportional to 361,622, 542,433.04 and 140,006

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Solution

The fourth proportional to 361,622, 542,433.04 and 140,006 is: 210,009.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,622 : 542,433.04 = 140,006 : x
  2. Step 2: Convert to fraction form
    361,622/542,433.04 = 140,006/x
  3. Step 3: Cross multiply
    361,622x = 542,433.04 × 140,006
  4. Step 4: Simplify right side
    361,622x = 75,943,880,198.24
  5. Step 5: Solve for x
    x = 75,943,880,198.24/361,622
  6. Step 6: Final answer
    x = 210,009.02

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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.