Home / 209,724.40-313,972.20-185,148.40

Finding the Fourth Proportional to 209,724.40, 313,972.20 and 185,148.40

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Solution

The fourth proportional to 209,724.40, 313,972.20 and 185,148.40 is: 277,180.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,724.40 : 313,972.20 = 185,148.40 : x
  2. Step 2: Convert to fraction form
    209,724.40/313,972.20 = 185,148.40/x
  3. Step 3: Cross multiply
    209,724.40x = 313,972.20 × 185,148.40
  4. Step 4: Simplify right side
    209,724.40x = 58,131,450,474.48
  5. Step 5: Solve for x
    x = 58,131,450,474.48/209,724.40
  6. Step 6: Final answer
    x = 277,180.20

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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.