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Finding the Fourth Proportional to 235,879.78, 325,510.87 and 133,904.35

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Solution

The fourth proportional to 235,879.78, 325,510.87 and 133,904.35 is: 184,786.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,879.78 : 325,510.87 = 133,904.35 : x
  2. Step 2: Convert to fraction form
    235,879.78/325,510.87 = 133,904.35/x
  3. Step 3: Cross multiply
    235,879.78x = 325,510.87 × 133,904.35
  4. Step 4: Simplify right side
    235,879.78x = 43,587,321,465.28
  5. Step 5: Solve for x
    x = 43,587,321,465.28/235,879.78
  6. Step 6: Final answer
    x = 184,786.17

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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.