Home / 219,710.40-329,128.20-114,588.60

Finding the Fourth Proportional to 219,710.40, 329,128.20 and 114,588.60

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Solution

The fourth proportional to 219,710.40, 329,128.20 and 114,588.60 is: 171,654.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,710.40 : 329,128.20 = 114,588.60 : x
  2. Step 2: Convert to fraction form
    219,710.40/329,128.20 = 114,588.60/x
  3. Step 3: Cross multiply
    219,710.40x = 329,128.20 × 114,588.60
  4. Step 4: Simplify right side
    219,710.40x = 37,714,339,658.52
  5. Step 5: Solve for x
    x = 37,714,339,658.52/219,710.40
  6. Step 6: Final answer
    x = 171,654.78

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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.