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Finding the Fourth Proportional to 202,173.40, 302,822.70 and 131,314.60

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Solution

The fourth proportional to 202,173.40, 302,822.70 and 131,314.60 is: 196,687.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,173.40 : 302,822.70 = 131,314.60 : x
  2. Step 2: Convert to fraction form
    202,173.40/302,822.70 = 131,314.60/x
  3. Step 3: Cross multiply
    202,173.40x = 302,822.70 × 131,314.60
  4. Step 4: Simplify right side
    202,173.40x = 39,765,041,721.42
  5. Step 5: Solve for x
    x = 39,765,041,721.42/202,173.40
  6. Step 6: Final answer
    x = 196,687.80

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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.