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Finding the Fourth Proportional to 291,076.20, 401,656.59 and 163,749.06

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Solution

The fourth proportional to 291,076.20, 401,656.59 and 163,749.06 is: 225,957.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,076.20 : 401,656.59 = 163,749.06 : x
  2. Step 2: Convert to fraction form
    291,076.20/401,656.59 = 163,749.06/x
  3. Step 3: Cross multiply
    291,076.20x = 401,656.59 × 163,749.06
  4. Step 4: Simplify right side
    291,076.20x = 65,770,889,055.31
  5. Step 5: Solve for x
    x = 65,770,889,055.31/291,076.20
  6. Step 6: Final answer
    x = 225,957.63

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.