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Finding the Fourth Proportional to 300,008.60, 449,948.10 and 131,528.60

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Solution

The fourth proportional to 300,008.60, 449,948.10 and 131,528.60 is: 197,264.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,008.60 : 449,948.10 = 131,528.60 : x
  2. Step 2: Convert to fraction form
    300,008.60/449,948.10 = 131,528.60/x
  3. Step 3: Cross multiply
    300,008.60x = 449,948.10 × 131,528.60
  4. Step 4: Simplify right side
    300,008.60x = 59,181,043,665.66
  5. Step 5: Solve for x
    x = 59,181,043,665.66/300,008.60
  6. Step 6: Final answer
    x = 197,264.49

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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.