Home / 307,164.20-423,920.94-171,210.56

Finding the Fourth Proportional to 307,164.20, 423,920.94 and 171,210.56

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Solution

The fourth proportional to 307,164.20, 423,920.94 and 171,210.56 is: 236,289.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,164.20 : 423,920.94 = 171,210.56 : x
  2. Step 2: Convert to fraction form
    307,164.20/423,920.94 = 171,210.56/x
  3. Step 3: Cross multiply
    307,164.20x = 423,920.94 × 171,210.56
  4. Step 4: Simplify right side
    307,164.20x = 72,579,741,533.13
  5. Step 5: Solve for x
    x = 72,579,741,533.13/307,164.20
  6. Step 6: Final answer
    x = 236,289.72

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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.