Home / 307,171.23-423,898.38-171,213.93

Finding the Fourth Proportional to 307,171.23, 423,898.38 and 171,213.93

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Solution

The fourth proportional to 307,171.23, 423,898.38 and 171,213.93 is: 236,276.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,171.23 : 423,898.38 = 171,213.93 : x
  2. Step 2: Convert to fraction form
    307,171.23/423,898.38 = 171,213.93/x
  3. Step 3: Cross multiply
    307,171.23x = 423,898.38 × 171,213.93
  4. Step 4: Simplify right side
    307,171.23x = 72,577,307,560.43
  5. Step 5: Solve for x
    x = 72,577,307,560.43/307,171.23
  6. Step 6: Final answer
    x = 236,276.38

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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.