Home / 307,080.48-423,758.34-171,107.40

Finding the Fourth Proportional to 307,080.48, 423,758.34 and 171,107.40

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Solution

The fourth proportional to 307,080.48, 423,758.34 and 171,107.40 is: 236,121.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,080.48 : 423,758.34 = 171,107.40 : x
  2. Step 2: Convert to fraction form
    307,080.48/423,758.34 = 171,107.40/x
  3. Step 3: Cross multiply
    307,080.48x = 423,758.34 × 171,107.40
  4. Step 4: Simplify right side
    307,080.48x = 72,508,187,785.72
  5. Step 5: Solve for x
    x = 72,508,187,785.72/307,080.48
  6. Step 6: Final answer
    x = 236,121.12

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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.