Home / 291,137.24-401,781.18-162,081

Finding the Fourth Proportional to 291,137.24, 401,781.18 and 162,081

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Solution

The fourth proportional to 291,137.24, 401,781.18 and 162,081 is: 223,678.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,137.24 : 401,781.18 = 162,081 : x
  2. Step 2: Convert to fraction form
    291,137.24/401,781.18 = 162,081/x
  3. Step 3: Cross multiply
    291,137.24x = 401,781.18 × 162,081
  4. Step 4: Simplify right side
    291,137.24x = 65,121,095,435.58
  5. Step 5: Solve for x
    x = 65,121,095,435.58/291,137.24
  6. Step 6: Final answer
    x = 223,678.34

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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.