Home / 291,214.08-401,808.96-163,843.20

Finding the Fourth Proportional to 291,214.08, 401,808.96 and 163,843.20

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Solution

The fourth proportional to 291,214.08, 401,808.96 and 163,843.20 is: 226,066.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,214.08 : 401,808.96 = 163,843.20 : x
  2. Step 2: Convert to fraction form
    291,214.08/401,808.96 = 163,843.20/x
  3. Step 3: Cross multiply
    291,214.08x = 401,808.96 × 163,843.20
  4. Step 4: Simplify right side
    291,214.08x = 65,833,665,795.07
  5. Step 5: Solve for x
    x = 65,833,665,795.07/291,214.08
  6. Step 6: Final answer
    x = 226,066.22

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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.