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Finding the Fourth Proportional to 303,201.70, 454,802.55 and 214,628.20

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Solution

The fourth proportional to 303,201.70, 454,802.55 and 214,628.20 is: 321,942.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,201.70 : 454,802.55 = 214,628.20 : x
  2. Step 2: Convert to fraction form
    303,201.70/454,802.55 = 214,628.20/x
  3. Step 3: Cross multiply
    303,201.70x = 454,802.55 × 214,628.20
  4. Step 4: Simplify right side
    303,201.70x = 97,613,452,661.91
  5. Step 5: Solve for x
    x = 97,613,452,661.91/303,201.70
  6. Step 6: Final answer
    x = 321,942.30

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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.