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Finding the Fourth Proportional to 315,166.74, 434,912.45 and 179,181.51

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Solution

The fourth proportional to 315,166.74, 434,912.45 and 179,181.51 is: 247,260.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,166.74 : 434,912.45 = 179,181.51 : x
  2. Step 2: Convert to fraction form
    315,166.74/434,912.45 = 179,181.51/x
  3. Step 3: Cross multiply
    315,166.74x = 434,912.45 × 179,181.51
  4. Step 4: Simplify right side
    315,166.74x = 77,928,269,508.80
  5. Step 5: Solve for x
    x = 77,928,269,508.80/315,166.74
  6. Step 6: Final answer
    x = 247,260.45

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1.5x scale

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.