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Finding the Fourth Proportional to 201,286.80, 301,930.20 and 134,931.60

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Solution

The fourth proportional to 201,286.80, 301,930.20 and 134,931.60 is: 202,397.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,286.80 : 301,930.20 = 134,931.60 : x
  2. Step 2: Convert to fraction form
    201,286.80/301,930.20 = 134,931.60/x
  3. Step 3: Cross multiply
    201,286.80x = 301,930.20 × 134,931.60
  4. Step 4: Simplify right side
    201,286.80x = 40,739,924,974.32
  5. Step 5: Solve for x
    x = 40,739,924,974.32/201,286.80
  6. Step 6: Final answer
    x = 202,397.40

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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.