Home / 219,859.44-303,362.90-138,140.35

Finding the Fourth Proportional to 219,859.44, 303,362.90 and 138,140.35

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Solution

The fourth proportional to 219,859.44, 303,362.90 and 138,140.35 is: 190,606.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,859.44 : 303,362.90 = 138,140.35 : x
  2. Step 2: Convert to fraction form
    219,859.44/303,362.90 = 138,140.35/x
  3. Step 3: Cross multiply
    219,859.44x = 303,362.90 × 138,140.35
  4. Step 4: Simplify right side
    219,859.44x = 41,906,657,958.35
  5. Step 5: Solve for x
    x = 41,906,657,958.35/219,859.44
  6. Step 6: Final answer
    x = 190,606.59

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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.