Home / 206,210.22-309,434.37-111,440.70

Finding the Fourth Proportional to 206,210.22, 309,434.37 and 111,440.70

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Solution

The fourth proportional to 206,210.22, 309,434.37 and 111,440.70 is: 167,225.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,210.22 : 309,434.37 = 111,440.70 : x
  2. Step 2: Convert to fraction form
    206,210.22/309,434.37 = 111,440.70/x
  3. Step 3: Cross multiply
    206,210.22x = 309,434.37 × 111,440.70
  4. Step 4: Simplify right side
    206,210.22x = 34,483,582,796.86
  5. Step 5: Solve for x
    x = 34,483,582,796.86/206,210.22
  6. Step 6: Final answer
    x = 167,225.38

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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.