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Finding the Fourth Proportional to 306,338.40, 459,507.60 and 148,874.40

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Solution

The fourth proportional to 306,338.40, 459,507.60 and 148,874.40 is: 223,311.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,338.40 : 459,507.60 = 148,874.40 : x
  2. Step 2: Convert to fraction form
    306,338.40/459,507.60 = 148,874.40/x
  3. Step 3: Cross multiply
    306,338.40x = 459,507.60 × 148,874.40
  4. Step 4: Simplify right side
    306,338.40x = 68,408,918,245.44
  5. Step 5: Solve for x
    x = 68,408,918,245.44/306,338.40
  6. Step 6: Final answer
    x = 223,311.60

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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.