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Finding the Fourth Proportional to 214,610.70, 321,640.65 and 119,840.70

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Solution

The fourth proportional to 214,610.70, 321,640.65 and 119,840.70 is: 179,607.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,610.70 : 321,640.65 = 119,840.70 : x
  2. Step 2: Convert to fraction form
    214,610.70/321,640.65 = 119,840.70/x
  3. Step 3: Cross multiply
    214,610.70x = 321,640.65 × 119,840.70
  4. Step 4: Simplify right side
    214,610.70x = 38,545,640,644.46
  5. Step 5: Solve for x
    x = 38,545,640,644.46/214,610.70
  6. Step 6: Final answer
    x = 179,607.26

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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.