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Finding the Fourth Proportional to 299,999.60, 449,999.40 and 173,639.60

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Solution

The fourth proportional to 299,999.60, 449,999.40 and 173,639.60 is: 260,459.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,999.60 : 449,999.40 = 173,639.60 : x
  2. Step 2: Convert to fraction form
    299,999.60/449,999.40 = 173,639.60/x
  3. Step 3: Cross multiply
    299,999.60x = 449,999.40 × 173,639.60
  4. Step 4: Simplify right side
    299,999.60x = 78,137,715,816.24
  5. Step 5: Solve for x
    x = 78,137,715,816.24/299,999.60
  6. Step 6: Final answer
    x = 260,459.40

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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.