Home / 201,822.80-302,734.20-130,859.60

Finding the Fourth Proportional to 201,822.80, 302,734.20 and 130,859.60

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Solution

The fourth proportional to 201,822.80, 302,734.20 and 130,859.60 is: 196,289.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,822.80 : 302,734.20 = 130,859.60 : x
  2. Step 2: Convert to fraction form
    201,822.80/302,734.20 = 130,859.60/x
  3. Step 3: Cross multiply
    201,822.80x = 302,734.20 × 130,859.60
  4. Step 4: Simplify right side
    201,822.80x = 39,615,676,318.32
  5. Step 5: Solve for x
    x = 39,615,676,318.32/201,822.80
  6. Step 6: Final answer
    x = 196,289.40

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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.