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Finding the Fourth Proportional to 201,600.90, 302,401.35 and 68,631.30

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Solution

The fourth proportional to 201,600.90, 302,401.35 and 68,631.30 is: 102,946.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,600.90 : 302,401.35 = 68,631.30 : x
  2. Step 2: Convert to fraction form
    201,600.90/302,401.35 = 68,631.30/x
  3. Step 3: Cross multiply
    201,600.90x = 302,401.35 × 68,631.30
  4. Step 4: Simplify right side
    201,600.90x = 20,754,197,772.26
  5. Step 5: Solve for x
    x = 20,754,197,772.26/201,600.90
  6. Step 6: Final answer
    x = 102,946.95

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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.