Home / 307,162.20-423,918.18-171,208.56

Finding the Fourth Proportional to 307,162.20, 423,918.18 and 171,208.56

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Solution

The fourth proportional to 307,162.20, 423,918.18 and 171,208.56 is: 236,286.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,162.20 : 423,918.18 = 171,208.56 : x
  2. Step 2: Convert to fraction form
    307,162.20/423,918.18 = 171,208.56/x
  3. Step 3: Cross multiply
    307,162.20x = 423,918.18 × 171,208.56
  4. Step 4: Simplify right side
    307,162.20x = 72,578,421,155.62
  5. Step 5: Solve for x
    x = 72,578,421,155.62/307,162.20
  6. Step 6: Final answer
    x = 236,286.96

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1.5x scale

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.