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Finding the Fourth Proportional to 301,079.20, 451,618.80 and 252,090.40

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Solution

The fourth proportional to 301,079.20, 451,618.80 and 252,090.40 is: 378,135.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,079.20 : 451,618.80 = 252,090.40 : x
  2. Step 2: Convert to fraction form
    301,079.20/451,618.80 = 252,090.40/x
  3. Step 3: Cross multiply
    301,079.20x = 451,618.80 × 252,090.40
  4. Step 4: Simplify right side
    301,079.20x = 113,848,763,939.52
  5. Step 5: Solve for x
    x = 113,848,763,939.52/301,079.20
  6. Step 6: Final answer
    x = 378,135.60

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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.