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Finding the Fourth Proportional to 303,100.72, 418,269.84 and 167,134.60

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Solution

The fourth proportional to 303,100.72, 418,269.84 and 167,134.60 is: 230,640.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,100.72 : 418,269.84 = 167,134.60 : x
  2. Step 2: Convert to fraction form
    303,100.72/418,269.84 = 167,134.60/x
  3. Step 3: Cross multiply
    303,100.72x = 418,269.84 × 167,134.60
  4. Step 4: Simplify right side
    303,100.72x = 69,907,362,400.46
  5. Step 5: Solve for x
    x = 69,907,362,400.46/303,100.72
  6. Step 6: Final answer
    x = 230,640.70

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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.