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Finding the Fourth Proportional to 275,064.99, 379,499.90 and 160,317.33

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Solution

The fourth proportional to 275,064.99, 379,499.90 and 160,317.33 is: 221,185.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,064.99 : 379,499.90 = 160,317.33 : x
  2. Step 2: Convert to fraction form
    275,064.99/379,499.90 = 160,317.33/x
  3. Step 3: Cross multiply
    275,064.99x = 379,499.90 × 160,317.33
  4. Step 4: Simplify right side
    275,064.99x = 60,840,409,901.68
  5. Step 5: Solve for x
    x = 60,840,409,901.68/275,064.99
  6. Step 6: Final answer
    x = 221,185.58

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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.