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Finding the Fourth Proportional to 202,162.40, 302,806.20 and 131,303.60

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Solution

The fourth proportional to 202,162.40, 302,806.20 and 131,303.60 is: 196,671.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,162.40 : 302,806.20 = 131,303.60 : x
  2. Step 2: Convert to fraction form
    202,162.40/302,806.20 = 131,303.60/x
  3. Step 3: Cross multiply
    202,162.40x = 302,806.20 × 131,303.60
  4. Step 4: Simplify right side
    202,162.40x = 39,759,544,162.32
  5. Step 5: Solve for x
    x = 39,759,544,162.32/202,162.40
  6. Step 6: Final answer
    x = 196,671.31

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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.