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Finding the Fourth Proportional to 291,240.36, 401,849.10 and 170,377.02

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Solution

The fourth proportional to 291,240.36, 401,849.10 and 170,377.02 is: 235,083.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,240.36 : 401,849.10 = 170,377.02 : x
  2. Step 2: Convert to fraction form
    291,240.36/401,849.10 = 170,377.02/x
  3. Step 3: Cross multiply
    291,240.36x = 401,849.10 × 170,377.02
  4. Step 4: Simplify right side
    291,240.36x = 68,465,852,147.68
  5. Step 5: Solve for x
    x = 68,465,852,147.68/291,240.36
  6. Step 6: Final answer
    x = 235,083.67

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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.