Home / 307,054.32-423,910.78-205,252.22

Finding the Fourth Proportional to 307,054.32, 423,910.78 and 205,252.22

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Solution

The fourth proportional to 307,054.32, 423,910.78 and 205,252.22 is: 283,365.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,054.32 : 423,910.78 = 205,252.22 : x
  2. Step 2: Convert to fraction form
    307,054.32/423,910.78 = 205,252.22/x
  3. Step 3: Cross multiply
    307,054.32x = 423,910.78 × 205,252.22
  4. Step 4: Simplify right side
    307,054.32x = 87,008,628,676.93
  5. Step 5: Solve for x
    x = 87,008,628,676.93/307,054.32
  6. Step 6: Final answer
    x = 283,365.59

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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.