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Finding the Fourth Proportional to 302,279.70, 454,403.70 and 214,143.60

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Solution

The fourth proportional to 302,279.70, 454,403.70 and 214,143.60 is: 321,912.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,279.70 : 454,403.70 = 214,143.60 : x
  2. Step 2: Convert to fraction form
    302,279.70/454,403.70 = 214,143.60/x
  3. Step 3: Cross multiply
    302,279.70x = 454,403.70 × 214,143.60
  4. Step 4: Simplify right side
    302,279.70x = 97,307,644,171.32
  5. Step 5: Solve for x
    x = 97,307,644,171.32/302,279.70
  6. Step 6: Final answer
    x = 321,912.60

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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.