Home / 201,828.80-302,743.20-130,865.60

Finding the Fourth Proportional to 201,828.80, 302,743.20 and 130,865.60

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Solution

The fourth proportional to 201,828.80, 302,743.20 and 130,865.60 is: 196,298.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,828.80 : 302,743.20 = 130,865.60 : x
  2. Step 2: Convert to fraction form
    201,828.80/302,743.20 = 130,865.60/x
  3. Step 3: Cross multiply
    201,828.80x = 302,743.20 × 130,865.60
  4. Step 4: Simplify right side
    201,828.80x = 39,618,670,513.92
  5. Step 5: Solve for x
    x = 39,618,670,513.92/201,828.80
  6. Step 6: Final answer
    x = 196,298.40

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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.