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Finding the Fourth Proportional to 245,670.26, 339,032.51 and 133,790.48

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Solution

The fourth proportional to 245,670.26, 339,032.51 and 133,790.48 is: 184,634.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,670.26 : 339,032.51 = 133,790.48 : x
  2. Step 2: Convert to fraction form
    245,670.26/339,032.51 = 133,790.48/x
  3. Step 3: Cross multiply
    245,670.26x = 339,032.51 × 133,790.48
  4. Step 4: Simplify right side
    245,670.26x = 45,359,319,884.39
  5. Step 5: Solve for x
    x = 45,359,319,884.39/245,670.26
  6. Step 6: Final answer
    x = 184,634.97

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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.