Home / 219,619.80-329,429.70-144,840.60

Finding the Fourth Proportional to 219,619.80, 329,429.70 and 144,840.60

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Solution

The fourth proportional to 219,619.80, 329,429.70 and 144,840.60 is: 217,260.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,619.80 : 329,429.70 = 144,840.60 : x
  2. Step 2: Convert to fraction form
    219,619.80/329,429.70 = 144,840.60/x
  3. Step 3: Cross multiply
    219,619.80x = 329,429.70 × 144,840.60
  4. Step 4: Simplify right side
    219,619.80x = 47,714,795,405.82
  5. Step 5: Solve for x
    x = 47,714,795,405.82/219,619.80
  6. Step 6: Final answer
    x = 217,260.90

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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.