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Finding the Fourth Proportional to 302,270.70, 454,390.20 and 214,134.60

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Solution

The fourth proportional to 302,270.70, 454,390.20 and 214,134.60 is: 321,899.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,270.70 : 454,390.20 = 214,134.60 : x
  2. Step 2: Convert to fraction form
    302,270.70/454,390.20 = 214,134.60/x
  3. Step 3: Cross multiply
    302,270.70x = 454,390.20 × 214,134.60
  4. Step 4: Simplify right side
    302,270.70x = 97,300,663,720.92
  5. Step 5: Solve for x
    x = 97,300,663,720.92/302,270.70
  6. Step 6: Final answer
    x = 321,899.09

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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.