Home / 307,165.20-423,922.32-171,211.56

Finding the Fourth Proportional to 307,165.20, 423,922.32 and 171,211.56

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Solution

The fourth proportional to 307,165.20, 423,922.32 and 171,211.56 is: 236,291.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,165.20 : 423,922.32 = 171,211.56 : x
  2. Step 2: Convert to fraction form
    307,165.20/423,922.32 = 171,211.56/x
  3. Step 3: Cross multiply
    307,165.20x = 423,922.32 × 171,211.56
  4. Step 4: Simplify right side
    307,165.20x = 72,580,401,726.02
  5. Step 5: Solve for x
    x = 72,580,401,726.02/307,165.20
  6. Step 6: Final answer
    x = 236,291.10

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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.