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Finding the Fourth Proportional to 307,850.82, 424,830.09 and 171,887.07

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Solution

The fourth proportional to 307,850.82, 424,830.09 and 171,887.07 is: 237,201.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,850.82 : 424,830.09 = 171,887.07 : x
  2. Step 2: Convert to fraction form
    307,850.82/424,830.09 = 171,887.07/x
  3. Step 3: Cross multiply
    307,850.82x = 424,830.09 × 171,887.07
  4. Step 4: Simplify right side
    307,850.82x = 73,022,801,655.63
  5. Step 5: Solve for x
    x = 73,022,801,655.63/307,850.82
  6. Step 6: Final answer
    x = 237,201.91

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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.