Home / 291,069.11-401,528.39-170,131.38

Finding the Fourth Proportional to 291,069.11, 401,528.39 and 170,131.38

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Solution

The fourth proportional to 291,069.11, 401,528.39 and 170,131.38 is: 234,695.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,069.11 : 401,528.39 = 170,131.38 : x
  2. Step 2: Convert to fraction form
    291,069.11/401,528.39 = 170,131.38/x
  3. Step 3: Cross multiply
    291,069.11x = 401,528.39 × 170,131.38
  4. Step 4: Simplify right side
    291,069.11x = 68,312,579,099.88
  5. Step 5: Solve for x
    x = 68,312,579,099.88/291,069.11
  6. Step 6: Final answer
    x = 234,695.39

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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.