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Finding the Fourth Proportional to 291,074.23, 401,680.78 and 163,750.87

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Solution

The fourth proportional to 291,074.23, 401,680.78 and 163,750.87 is: 225,975.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,074.23 : 401,680.78 = 163,750.87 : x
  2. Step 2: Convert to fraction form
    291,074.23/401,680.78 = 163,750.87/x
  3. Step 3: Cross multiply
    291,074.23x = 401,680.78 × 163,750.87
  4. Step 4: Simplify right side
    291,074.23x = 65,775,577,187.28
  5. Step 5: Solve for x
    x = 65,775,577,187.28/291,074.23
  6. Step 6: Final answer
    x = 225,975.27

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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.