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Finding the Fourth Proportional to 182,428.40, 273,059.40 and 129,940.40

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Solution

The fourth proportional to 182,428.40, 273,059.40 and 129,940.40 is: 194,495.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    182,428.40 : 273,059.40 = 129,940.40 : x
  2. Step 2: Convert to fraction form
    182,428.40/273,059.40 = 129,940.40/x
  3. Step 3: Cross multiply
    182,428.40x = 273,059.40 × 129,940.40
  4. Step 4: Simplify right side
    182,428.40x = 35,481,447,659.76
  5. Step 5: Solve for x
    x = 35,481,447,659.76/182,428.40
  6. Step 6: Final answer
    x = 194,495.20

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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.