Home / 259,724.40-389,279.40-109,964.40

Finding the Fourth Proportional to 259,724.40, 389,279.40 and 109,964.40

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Solution

The fourth proportional to 259,724.40, 389,279.40 and 109,964.40 is: 164,816.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,724.40 : 389,279.40 = 109,964.40 : x
  2. Step 2: Convert to fraction form
    259,724.40/389,279.40 = 109,964.40/x
  3. Step 3: Cross multiply
    259,724.40x = 389,279.40 × 109,964.40
  4. Step 4: Simplify right side
    259,724.40x = 42,806,875,653.36
  5. Step 5: Solve for x
    x = 42,806,875,653.36/259,724.40
  6. Step 6: Final answer
    x = 164,816.53

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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.