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Finding the Fourth Proportional to 451,633.50, 623,351.43 and 270,385.89

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Solution

The fourth proportional to 451,633.50, 623,351.43 and 270,385.89 is: 373,190.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,633.50 : 623,351.43 = 270,385.89 : x
  2. Step 2: Convert to fraction form
    451,633.50/623,351.43 = 270,385.89/x
  3. Step 3: Cross multiply
    451,633.50x = 623,351.43 × 270,385.89
  4. Step 4: Simplify right side
    451,633.50x = 168,545,431,183.32
  5. Step 5: Solve for x
    x = 168,545,431,183.32/451,633.50
  6. Step 6: Final answer
    x = 373,190.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.