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Finding the Fourth Proportional to 302,028.70, 454,027.20 and 213,892.60

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Solution

The fourth proportional to 302,028.70, 454,027.20 and 213,892.60 is: 321,535.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,028.70 : 454,027.20 = 213,892.60 : x
  2. Step 2: Convert to fraction form
    302,028.70/454,027.20 = 213,892.60/x
  3. Step 3: Cross multiply
    302,028.70x = 454,027.20 × 213,892.60
  4. Step 4: Simplify right side
    302,028.70x = 97,113,058,278.72
  5. Step 5: Solve for x
    x = 97,113,058,278.72/302,028.70
  6. Step 6: Final answer
    x = 321,535.86

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1.5x scale

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.