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Finding the Fourth Proportional to 180,431.44, 248,967.65 and 103,935.60

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Solution

The fourth proportional to 180,431.44, 248,967.65 and 103,935.60 is: 143,415.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,431.44 : 248,967.65 = 103,935.60 : x
  2. Step 2: Convert to fraction form
    180,431.44/248,967.65 = 103,935.60/x
  3. Step 3: Cross multiply
    180,431.44x = 248,967.65 × 103,935.60
  4. Step 4: Simplify right side
    180,431.44x = 25,876,601,539.47
  5. Step 5: Solve for x
    x = 25,876,601,539.47/180,431.44
  6. Step 6: Final answer
    x = 143,415.15

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1.5x scale

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.