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Finding the Fourth Proportional to 451,315, 622,814.70 and 250,123.96

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Solution

The fourth proportional to 451,315, 622,814.70 and 250,123.96 is: 345,171.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,315 : 622,814.70 = 250,123.96 : x
  2. Step 2: Convert to fraction form
    451,315/622,814.70 = 250,123.96/x
  3. Step 3: Cross multiply
    451,315x = 622,814.70 × 250,123.96
  4. Step 4: Simplify right side
    451,315x = 155,780,879,110.21
  5. Step 5: Solve for x
    x = 155,780,879,110.21/451,315
  6. Step 6: Final answer
    x = 345,171.06

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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.