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Finding the Fourth Proportional to 366,885.10, 550,327.65 and 278,311.60

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Solution

The fourth proportional to 366,885.10, 550,327.65 and 278,311.60 is: 417,467.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,885.10 : 550,327.65 = 278,311.60 : x
  2. Step 2: Convert to fraction form
    366,885.10/550,327.65 = 278,311.60/x
  3. Step 3: Cross multiply
    366,885.10x = 550,327.65 × 278,311.60
  4. Step 4: Simplify right side
    366,885.10x = 153,162,568,795.74
  5. Step 5: Solve for x
    x = 153,162,568,795.74/366,885.10
  6. Step 6: Final answer
    x = 417,467.40

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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.