Home / 201,981.20-302,777.40-156,977.60

Finding the Fourth Proportional to 201,981.20, 302,777.40 and 156,977.60

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Solution

The fourth proportional to 201,981.20, 302,777.40 and 156,977.60 is: 235,315.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,981.20 : 302,777.40 = 156,977.60 : x
  2. Step 2: Convert to fraction form
    201,981.20/302,777.40 = 156,977.60/x
  3. Step 3: Cross multiply
    201,981.20x = 302,777.40 × 156,977.60
  4. Step 4: Simplify right side
    201,981.20x = 47,529,269,586.24
  5. Step 5: Solve for x
    x = 47,529,269,586.24/201,981.20
  6. Step 6: Final answer
    x = 235,315.31

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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.