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Finding the Fourth Proportional to 315,201.54, 434,976.06 and 179,235.51

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Solution

The fourth proportional to 315,201.54, 434,976.06 and 179,235.51 is: 247,343.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,201.54 : 434,976.06 = 179,235.51 : x
  2. Step 2: Convert to fraction form
    315,201.54/434,976.06 = 179,235.51/x
  3. Step 3: Cross multiply
    315,201.54x = 434,976.06 × 179,235.51
  4. Step 4: Simplify right side
    315,201.54x = 77,963,155,951.89
  5. Step 5: Solve for x
    x = 77,963,155,951.89/315,201.54
  6. Step 6: Final answer
    x = 247,343.83

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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.