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Finding the Fourth Proportional to 150,005.60, 225,008.40 and 80,021.60

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Solution

The fourth proportional to 150,005.60, 225,008.40 and 80,021.60 is: 120,032.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,005.60 : 225,008.40 = 80,021.60 : x
  2. Step 2: Convert to fraction form
    150,005.60/225,008.40 = 80,021.60/x
  3. Step 3: Cross multiply
    150,005.60x = 225,008.40 × 80,021.60
  4. Step 4: Simplify right side
    150,005.60x = 18,005,532,181.44
  5. Step 5: Solve for x
    x = 18,005,532,181.44/150,005.60
  6. Step 6: Final answer
    x = 120,032.40

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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.