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Finding the Fourth Proportional to 203,210.93, 303,580.44 and 131,549.78

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Solution

The fourth proportional to 203,210.93, 303,580.44 and 131,549.78 is: 196,524.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,210.93 : 303,580.44 = 131,549.78 : x
  2. Step 2: Convert to fraction form
    203,210.93/303,580.44 = 131,549.78/x
  3. Step 3: Cross multiply
    203,210.93x = 303,580.44 × 131,549.78
  4. Step 4: Simplify right side
    203,210.93x = 39,935,937,918.65
  5. Step 5: Solve for x
    x = 39,935,937,918.65/203,210.93
  6. Step 6: Final answer
    x = 196,524.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.