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Finding the Fourth Proportional to 201,640.20, 302,460.30 and 131,598.60

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Solution

The fourth proportional to 201,640.20, 302,460.30 and 131,598.60 is: 197,397.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,640.20 : 302,460.30 = 131,598.60 : x
  2. Step 2: Convert to fraction form
    201,640.20/302,460.30 = 131,598.60/x
  3. Step 3: Cross multiply
    201,640.20x = 302,460.30 × 131,598.60
  4. Step 4: Simplify right side
    201,640.20x = 39,803,352,035.58
  5. Step 5: Solve for x
    x = 39,803,352,035.58/201,640.20
  6. Step 6: Final answer
    x = 197,397.90

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1.5x scale

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.