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Finding the Fourth Proportional to 254,451.20, 381,676.80 and 235,205.60

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Solution

The fourth proportional to 254,451.20, 381,676.80 and 235,205.60 is: 352,808.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,451.20 : 381,676.80 = 235,205.60 : x
  2. Step 2: Convert to fraction form
    254,451.20/381,676.80 = 235,205.60/x
  3. Step 3: Cross multiply
    254,451.20x = 381,676.80 × 235,205.60
  4. Step 4: Simplify right side
    254,451.20x = 89,772,520,750.08
  5. Step 5: Solve for x
    x = 89,772,520,750.08/254,451.20
  6. Step 6: Final answer
    x = 352,808.40

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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.