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Finding the Fourth Proportional to 202,163.70, 302,662.35 and 123,431.70

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Solution

The fourth proportional to 202,163.70, 302,662.35 and 123,431.70 is: 184,791.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,163.70 : 302,662.35 = 123,431.70 : x
  2. Step 2: Convert to fraction form
    202,163.70/302,662.35 = 123,431.70/x
  3. Step 3: Cross multiply
    202,163.70x = 302,662.35 × 123,431.70
  4. Step 4: Simplify right side
    202,163.70x = 37,358,128,386.50
  5. Step 5: Solve for x
    x = 37,358,128,386.50/202,163.70
  6. Step 6: Final answer
    x = 184,791.48

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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.