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Finding the Fourth Proportional to 181,996.20, 272,338.20 and 122,947.20

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Solution

The fourth proportional to 181,996.20, 272,338.20 and 122,947.20 is: 183,977.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,996.20 : 272,338.20 = 122,947.20 : x
  2. Step 2: Convert to fraction form
    181,996.20/272,338.20 = 122,947.20/x
  3. Step 3: Cross multiply
    181,996.20x = 272,338.20 × 122,947.20
  4. Step 4: Simplify right side
    181,996.20x = 33,483,219,143.04
  5. Step 5: Solve for x
    x = 33,483,219,143.04/181,996.20
  6. Step 6: Final answer
    x = 183,977.57

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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.