Home / 217,784.77-300,533.25-120,994.86

Finding the Fourth Proportional to 217,784.77, 300,533.25 and 120,994.86

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Solution

The fourth proportional to 217,784.77, 300,533.25 and 120,994.86 is: 166,967.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,784.77 : 300,533.25 = 120,994.86 : x
  2. Step 2: Convert to fraction form
    217,784.77/300,533.25 = 120,994.86/x
  3. Step 3: Cross multiply
    217,784.77x = 300,533.25 × 120,994.86
  4. Step 4: Simplify right side
    217,784.77x = 36,362,978,509.10
  5. Step 5: Solve for x
    x = 36,362,978,509.10/217,784.77
  6. Step 6: Final answer
    x = 166,967.50

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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.