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Finding the Fourth Proportional to 203,157, 280,263.63 and 131,560.08

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Solution

The fourth proportional to 203,157, 280,263.63 and 131,560.08 is: 181,492.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,157 : 280,263.63 = 131,560.08 : x
  2. Step 2: Convert to fraction form
    203,157/280,263.63 = 131,560.08/x
  3. Step 3: Cross multiply
    203,157x = 280,263.63 × 131,560.08
  4. Step 4: Simplify right side
    203,157x = 36,871,505,583.89
  5. Step 5: Solve for x
    x = 36,871,505,583.89/203,157
  6. Step 6: Final answer
    x = 181,492.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.