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Finding the Fourth Proportional to 281,086.24, 421,335.60 and 123,181.60

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Solution

The fourth proportional to 281,086.24, 421,335.60 and 123,181.60 is: 184,643.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,086.24 : 421,335.60 = 123,181.60 : x
  2. Step 2: Convert to fraction form
    281,086.24/421,335.60 = 123,181.60/x
  3. Step 3: Cross multiply
    281,086.24x = 421,335.60 × 123,181.60
  4. Step 4: Simplify right side
    281,086.24x = 51,900,793,344.96
  5. Step 5: Solve for x
    x = 51,900,793,344.96/281,086.24
  6. Step 6: Final answer
    x = 184,643.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.