Home / 290,907.06-401,449.23-163,579.92

Finding the Fourth Proportional to 290,907.06, 401,449.23 and 163,579.92

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Solution

The fourth proportional to 290,907.06, 401,449.23 and 163,579.92 is: 225,738.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,907.06 : 401,449.23 = 163,579.92 : x
  2. Step 2: Convert to fraction form
    290,907.06/401,449.23 = 163,579.92/x
  3. Step 3: Cross multiply
    290,907.06x = 401,449.23 × 163,579.92
  4. Step 4: Simplify right side
    290,907.06x = 65,669,032,927.46
  5. Step 5: Solve for x
    x = 65,669,032,927.46/290,907.06
  6. Step 6: Final answer
    x = 225,738.88

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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.