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Finding the Fourth Proportional to 205,556.40, 308,334.60 and 158,900.40

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Solution

The fourth proportional to 205,556.40, 308,334.60 and 158,900.40 is: 238,350.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,556.40 : 308,334.60 = 158,900.40 : x
  2. Step 2: Convert to fraction form
    205,556.40/308,334.60 = 158,900.40/x
  3. Step 3: Cross multiply
    205,556.40x = 308,334.60 × 158,900.40
  4. Step 4: Simplify right side
    205,556.40x = 48,994,491,273.84
  5. Step 5: Solve for x
    x = 48,994,491,273.84/205,556.40
  6. Step 6: Final answer
    x = 238,350.60

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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.