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Finding the Fourth Proportional to 201,120.76, 301,680.88 and 51,361.16

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Solution

The fourth proportional to 201,120.76, 301,680.88 and 51,361.16 is: 77,041.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,120.76 : 301,680.88 = 51,361.16 : x
  2. Step 2: Convert to fraction form
    201,120.76/301,680.88 = 51,361.16/x
  3. Step 3: Cross multiply
    201,120.76x = 301,680.88 × 51,361.16
  4. Step 4: Simplify right side
    201,120.76x = 15,494,679,441.12
  5. Step 5: Solve for x
    x = 15,494,679,441.12/201,120.76
  6. Step 6: Final answer
    x = 77,041.67

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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.