Home / 307,181.20-423,858.68-171,185.34

Finding the Fourth Proportional to 307,181.20, 423,858.68 and 171,185.34

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Solution

The fourth proportional to 307,181.20, 423,858.68 and 171,185.34 is: 236,207.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,181.20 : 423,858.68 = 171,185.34 : x
  2. Step 2: Convert to fraction form
    307,181.20/423,858.68 = 171,185.34/x
  3. Step 3: Cross multiply
    307,181.20x = 423,858.68 × 171,185.34
  4. Step 4: Simplify right side
    307,181.20x = 72,558,392,247.75
  5. Step 5: Solve for x
    x = 72,558,392,247.75/307,181.20
  6. Step 6: Final answer
    x = 236,207.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.