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Finding the Fourth Proportional to 201,803.30, 302,488.95 and 68,560.10

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Solution

The fourth proportional to 201,803.30, 302,488.95 and 68,560.10 is: 102,766.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,803.30 : 302,488.95 = 68,560.10 : x
  2. Step 2: Convert to fraction form
    201,803.30/302,488.95 = 68,560.10/x
  3. Step 3: Cross multiply
    201,803.30x = 302,488.95 × 68,560.10
  4. Step 4: Simplify right side
    201,803.30x = 20,738,672,660.90
  5. Step 5: Solve for x
    x = 20,738,672,660.90/201,803.30
  6. Step 6: Final answer
    x = 102,766.77

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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.