Home / 412,928.20-619,238.70-163,558.60

Finding the Fourth Proportional to 412,928.20, 619,238.70 and 163,558.60

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Solution

The fourth proportional to 412,928.20, 619,238.70 and 163,558.60 is: 245,277.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,928.20 : 619,238.70 = 163,558.60 : x
  2. Step 2: Convert to fraction form
    412,928.20/619,238.70 = 163,558.60/x
  3. Step 3: Cross multiply
    412,928.20x = 619,238.70 × 163,558.60
  4. Step 4: Simplify right side
    412,928.20x = 101,281,814,837.82
  5. Step 5: Solve for x
    x = 101,281,814,837.82/412,928.20
  6. Step 6: Final answer
    x = 245,277.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.