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Finding the Fourth Proportional to 322,090.66, 444,903.42 and 245,142.28

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Solution

The fourth proportional to 322,090.66, 444,903.42 and 245,142.28 is: 338,614.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,090.66 : 444,903.42 = 245,142.28 : x
  2. Step 2: Convert to fraction form
    322,090.66/444,903.42 = 245,142.28/x
  3. Step 3: Cross multiply
    322,090.66x = 444,903.42 × 245,142.28
  4. Step 4: Simplify right side
    322,090.66x = 109,064,638,758.60
  5. Step 5: Solve for x
    x = 109,064,638,758.60/322,090.66
  6. Step 6: Final answer
    x = 338,614.72

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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.