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Finding the Fourth Proportional to 449,443.02, 620,209.70 and 248,234.70

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Solution

The fourth proportional to 449,443.02, 620,209.70 and 248,234.70 is: 342,551.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,443.02 : 620,209.70 = 248,234.70 : x
  2. Step 2: Convert to fraction form
    449,443.02/620,209.70 = 248,234.70/x
  3. Step 3: Cross multiply
    449,443.02x = 620,209.70 × 248,234.70
  4. Step 4: Simplify right side
    449,443.02x = 153,957,568,816.59
  5. Step 5: Solve for x
    x = 153,957,568,816.59/449,443.02
  6. Step 6: Final answer
    x = 342,551.92

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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.