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Finding the Fourth Proportional to 315,226.56, 434,994.83 and 179,293.58

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Solution

The fourth proportional to 315,226.56, 434,994.83 and 179,293.58 is: 247,415.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,226.56 : 434,994.83 = 179,293.58 : x
  2. Step 2: Convert to fraction form
    315,226.56/434,994.83 = 179,293.58/x
  3. Step 3: Cross multiply
    315,226.56x = 434,994.83 × 179,293.58
  4. Step 4: Simplify right side
    315,226.56x = 77,991,780,352.19
  5. Step 5: Solve for x
    x = 77,991,780,352.19/315,226.56
  6. Step 6: Final answer
    x = 247,415.00

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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.