Home / 291,107.11-401,723.69-163,782.40

Finding the Fourth Proportional to 291,107.11, 401,723.69 and 163,782.40

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Solution

The fourth proportional to 291,107.11, 401,723.69 and 163,782.40 is: 226,017.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,107.11 : 401,723.69 = 163,782.40 : x
  2. Step 2: Convert to fraction form
    291,107.11/401,723.69 = 163,782.40/x
  3. Step 3: Cross multiply
    291,107.11x = 401,723.69 × 163,782.40
  4. Step 4: Simplify right side
    291,107.11x = 65,795,270,173.91
  5. Step 5: Solve for x
    x = 65,795,270,173.91/291,107.11
  6. Step 6: Final answer
    x = 226,017.39

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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.