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Finding the Fourth Proportional to 181,620.80, 272,431.20 and 125,633.60

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Solution

The fourth proportional to 181,620.80, 272,431.20 and 125,633.60 is: 188,450.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,620.80 : 272,431.20 = 125,633.60 : x
  2. Step 2: Convert to fraction form
    181,620.80/272,431.20 = 125,633.60/x
  3. Step 3: Cross multiply
    181,620.80x = 272,431.20 × 125,633.60
  4. Step 4: Simplify right side
    181,620.80x = 34,226,512,408.32
  5. Step 5: Solve for x
    x = 34,226,512,408.32/181,620.80
  6. Step 6: Final answer
    x = 188,450.40

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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.