Home / 205,949.80-308,579.10-100,541.80

Finding the Fourth Proportional to 205,949.80, 308,579.10 and 100,541.80

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Solution

The fourth proportional to 205,949.80, 308,579.10 and 100,541.80 is: 150,643.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,949.80 : 308,579.10 = 100,541.80 : x
  2. Step 2: Convert to fraction form
    205,949.80/308,579.10 = 100,541.80/x
  3. Step 3: Cross multiply
    205,949.80x = 308,579.10 × 100,541.80
  4. Step 4: Simplify right side
    205,949.80x = 31,025,098,156.38
  5. Step 5: Solve for x
    x = 31,025,098,156.38/205,949.80
  6. Step 6: Final answer
    x = 150,643.98

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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.