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Finding the Fourth Proportional to 302,245.70, 454,352.70 and 214,109.60

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Solution

The fourth proportional to 302,245.70, 454,352.70 and 214,109.60 is: 321,861.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,245.70 : 454,352.70 = 214,109.60 : x
  2. Step 2: Convert to fraction form
    302,245.70/454,352.70 = 214,109.60/x
  3. Step 3: Cross multiply
    302,245.70x = 454,352.70 × 214,109.60
  4. Step 4: Simplify right side
    302,245.70x = 97,281,274,855.92
  5. Step 5: Solve for x
    x = 97,281,274,855.92/302,245.70
  6. Step 6: Final answer
    x = 321,861.57

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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.