Home / 290,415.29-400,782.06-163,093.61

Finding the Fourth Proportional to 290,415.29, 400,782.06 and 163,093.61

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Solution

The fourth proportional to 290,415.29, 400,782.06 and 163,093.61 is: 225,074.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,415.29 : 400,782.06 = 163,093.61 : x
  2. Step 2: Convert to fraction form
    290,415.29/400,782.06 = 163,093.61/x
  3. Step 3: Cross multiply
    290,415.29x = 400,782.06 × 163,093.61
  4. Step 4: Simplify right side
    290,415.29x = 65,364,993,990.59
  5. Step 5: Solve for x
    x = 65,364,993,990.59/290,415.29
  6. Step 6: Final answer
    x = 225,074.22

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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.