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Finding the Fourth Proportional to 207,401.10, 310,324.05 and 188,738.70

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Solution

The fourth proportional to 207,401.10, 310,324.05 and 188,738.70 is: 282,400.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,401.10 : 310,324.05 = 188,738.70 : x
  2. Step 2: Convert to fraction form
    207,401.10/310,324.05 = 188,738.70/x
  3. Step 3: Cross multiply
    207,401.10x = 310,324.05 × 188,738.70
  4. Step 4: Simplify right side
    207,401.10x = 58,570,157,775.74
  5. Step 5: Solve for x
    x = 58,570,157,775.74/207,401.10
  6. Step 6: Final answer
    x = 282,400.42

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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.