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Finding the Fourth Proportional to 315,191.81, 434,976.83 and 179,238.02

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Solution

The fourth proportional to 315,191.81, 434,976.83 and 179,238.02 is: 247,355.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,191.81 : 434,976.83 = 179,238.02 : x
  2. Step 2: Convert to fraction form
    315,191.81/434,976.83 = 179,238.02/x
  3. Step 3: Cross multiply
    315,191.81x = 434,976.83 × 179,238.02
  4. Step 4: Simplify right side
    315,191.81x = 77,964,384,364.36
  5. Step 5: Solve for x
    x = 77,964,384,364.36/315,191.81
  6. Step 6: Final answer
    x = 247,355.36

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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.