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Finding the Fourth Proportional to 253,736.42, 380,485.46 and 147,150.67

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Solution

The fourth proportional to 253,736.42, 380,485.46 and 147,150.67 is: 220,656.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,736.42 : 380,485.46 = 147,150.67 : x
  2. Step 2: Convert to fraction form
    253,736.42/380,485.46 = 147,150.67/x
  3. Step 3: Cross multiply
    253,736.42x = 380,485.46 × 147,150.67
  4. Step 4: Simplify right side
    253,736.42x = 55,988,691,172.02
  5. Step 5: Solve for x
    x = 55,988,691,172.02/253,736.42
  6. Step 6: Final answer
    x = 220,656.89

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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.