Home / 209,260.35-288,780.44-123,223.05

Finding the Fourth Proportional to 209,260.35, 288,780.44 and 123,223.05

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Solution

The fourth proportional to 209,260.35, 288,780.44 and 123,223.05 is: 170,048.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,260.35 : 288,780.44 = 123,223.05 : x
  2. Step 2: Convert to fraction form
    209,260.35/288,780.44 = 123,223.05/x
  3. Step 3: Cross multiply
    209,260.35x = 288,780.44 × 123,223.05
  4. Step 4: Simplify right side
    209,260.35x = 35,584,405,981.03
  5. Step 5: Solve for x
    x = 35,584,405,981.03/209,260.35
  6. Step 6: Final answer
    x = 170,048.49

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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.