Home / 307,172.25-423,884.07-171,221.04

Finding the Fourth Proportional to 307,172.25, 423,884.07 and 171,221.04

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Solution

The fourth proportional to 307,172.25, 423,884.07 and 171,221.04 is: 236,277.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,172.25 : 423,884.07 = 171,221.04 : x
  2. Step 2: Convert to fraction form
    307,172.25/423,884.07 = 171,221.04/x
  3. Step 3: Cross multiply
    307,172.25x = 423,884.07 × 171,221.04
  4. Step 4: Simplify right side
    307,172.25x = 72,577,871,304.83
  5. Step 5: Solve for x
    x = 72,577,871,304.83/307,172.25
  6. Step 6: Final answer
    x = 236,277.43

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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.