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Finding the Fourth Proportional to 299,433.60, 449,150.40 and 141,969.60

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Solution

The fourth proportional to 299,433.60, 449,150.40 and 141,969.60 is: 212,954.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,433.60 : 449,150.40 = 141,969.60 : x
  2. Step 2: Convert to fraction form
    299,433.60/449,150.40 = 141,969.60/x
  3. Step 3: Cross multiply
    299,433.60x = 449,150.40 × 141,969.60
  4. Step 4: Simplify right side
    299,433.60x = 63,765,702,627.84
  5. Step 5: Solve for x
    x = 63,765,702,627.84/299,433.60
  6. Step 6: Final answer
    x = 212,954.40

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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.