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Finding the Fourth Proportional to 201,334.60, 302,001.90 and 76,659.40

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Solution

The fourth proportional to 201,334.60, 302,001.90 and 76,659.40 is: 114,989.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,334.60 : 302,001.90 = 76,659.40 : x
  2. Step 2: Convert to fraction form
    201,334.60/302,001.90 = 76,659.40/x
  3. Step 3: Cross multiply
    201,334.60x = 302,001.90 × 76,659.40
  4. Step 4: Simplify right side
    201,334.60x = 23,151,284,452.86
  5. Step 5: Solve for x
    x = 23,151,284,452.86/201,334.60
  6. Step 6: Final answer
    x = 114,989.10

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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.