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Finding the Fourth Proportional to 291,090.12, 401,557.36 and 170,152.39

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Solution

The fourth proportional to 291,090.12, 401,557.36 and 170,152.39 is: 234,724.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,090.12 : 401,557.36 = 170,152.39 : x
  2. Step 2: Convert to fraction form
    291,090.12/401,557.36 = 170,152.39/x
  3. Step 3: Cross multiply
    291,090.12x = 401,557.36 × 170,152.39
  4. Step 4: Simplify right side
    291,090.12x = 68,325,944,526.09
  5. Step 5: Solve for x
    x = 68,325,944,526.09/291,090.12
  6. Step 6: Final answer
    x = 234,724.37

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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.