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Finding the Fourth Proportional to 303,485.09, 418,809.45 and 167,519.07

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Solution

The fourth proportional to 303,485.09, 418,809.45 and 167,519.07 is: 231,176.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,485.09 : 418,809.45 = 167,519.07 : x
  2. Step 2: Convert to fraction form
    303,485.09/418,809.45 = 167,519.07/x
  3. Step 3: Cross multiply
    303,485.09x = 418,809.45 × 167,519.07
  4. Step 4: Simplify right side
    303,485.09x = 70,158,569,571.21
  5. Step 5: Solve for x
    x = 70,158,569,571.21/303,485.09
  6. Step 6: Final answer
    x = 231,176.33

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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.