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Finding the Fourth Proportional to 223,993.00, 309,110.20 and 123,391.00

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Solution

The fourth proportional to 223,993.00, 309,110.20 and 123,391.00 is: 170,279.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,993.00 : 309,110.20 = 123,391.00 : x
  2. Step 2: Convert to fraction form
    223,993.00/309,110.20 = 123,391.00/x
  3. Step 3: Cross multiply
    223,993.00x = 309,110.20 × 123,391.00
  4. Step 4: Simplify right side
    223,993.00x = 38,141,415,374.40
  5. Step 5: Solve for x
    x = 38,141,415,374.40/223,993.00
  6. Step 6: Final answer
    x = 170,279.50

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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.