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Finding the Fourth Proportional to 213,606.42, 320,410.44 and 200,615.64

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Solution

The fourth proportional to 213,606.42, 320,410.44 and 200,615.64 is: 300,924.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,606.42 : 320,410.44 = 200,615.64 : x
  2. Step 2: Convert to fraction form
    213,606.42/320,410.44 = 200,615.64/x
  3. Step 3: Cross multiply
    213,606.42x = 320,410.44 × 200,615.64
  4. Step 4: Simplify right side
    213,606.42x = 64,279,345,483.28
  5. Step 5: Solve for x
    x = 64,279,345,483.28/213,606.42
  6. Step 6: Final answer
    x = 300,924.22

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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.