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Finding the Fourth Proportional to 213,900.80, 295,190.08 and 123,249.74

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Solution

The fourth proportional to 213,900.80, 295,190.08 and 123,249.74 is: 170,088.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,900.80 : 295,190.08 = 123,249.74 : x
  2. Step 2: Convert to fraction form
    213,900.80/295,190.08 = 123,249.74/x
  3. Step 3: Cross multiply
    213,900.80x = 295,190.08 × 123,249.74
  4. Step 4: Simplify right side
    213,900.80x = 36,382,100,610.58
  5. Step 5: Solve for x
    x = 36,382,100,610.58/213,900.80
  6. Step 6: Final answer
    x = 170,088.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.