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Finding the Fourth Proportional to 133,380.40, 200,070.60 and 127,256.80

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Solution

The fourth proportional to 133,380.40, 200,070.60 and 127,256.80 is: 190,885.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,380.40 : 200,070.60 = 127,256.80 : x
  2. Step 2: Convert to fraction form
    133,380.40/200,070.60 = 127,256.80/x
  3. Step 3: Cross multiply
    133,380.40x = 200,070.60 × 127,256.80
  4. Step 4: Simplify right side
    133,380.40x = 25,460,344,330.08
  5. Step 5: Solve for x
    x = 25,460,344,330.08/133,380.40
  6. Step 6: Final answer
    x = 190,885.20

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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.