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Finding the Fourth Proportional to 188,655.36, 260,340.12 and 103,770.60

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Solution

The fourth proportional to 188,655.36, 260,340.12 and 103,770.60 is: 143,201.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,655.36 : 260,340.12 = 103,770.60 : x
  2. Step 2: Convert to fraction form
    188,655.36/260,340.12 = 103,770.60/x
  3. Step 3: Cross multiply
    188,655.36x = 260,340.12 × 103,770.60
  4. Step 4: Simplify right side
    188,655.36x = 27,015,650,456.47
  5. Step 5: Solve for x
    x = 27,015,650,456.47/188,655.36
  6. Step 6: Final answer
    x = 143,201.08

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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.