Home / 209,724.72-289,168.56-171,342.06

Finding the Fourth Proportional to 209,724.72, 289,168.56 and 171,342.06

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Solution

The fourth proportional to 209,724.72, 289,168.56 and 171,342.06 is: 236,246.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,724.72 : 289,168.56 = 171,342.06 : x
  2. Step 2: Convert to fraction form
    209,724.72/289,168.56 = 171,342.06/x
  3. Step 3: Cross multiply
    209,724.72x = 289,168.56 × 171,342.06
  4. Step 4: Simplify right side
    209,724.72x = 49,546,736,757.63
  5. Step 5: Solve for x
    x = 49,546,736,757.63/209,724.72
  6. Step 6: Final answer
    x = 236,246.53

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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.