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Finding the Fourth Proportional to 291,241.36, 401,850.48 and 170,378.02

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Solution

The fourth proportional to 291,241.36, 401,850.48 and 170,378.02 is: 235,085.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,241.36 : 401,850.48 = 170,378.02 : x
  2. Step 2: Convert to fraction form
    291,241.36/401,850.48 = 170,378.02/x
  3. Step 3: Cross multiply
    291,241.36x = 401,850.48 × 170,378.02
  4. Step 4: Simplify right side
    291,241.36x = 68,466,489,118.45
  5. Step 5: Solve for x
    x = 68,466,489,118.45/291,241.36
  6. Step 6: Final answer
    x = 235,085.05

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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.