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Finding the Fourth Proportional to 377,449.45, 520,708.61 and 224,400.80

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Solution

The fourth proportional to 377,449.45, 520,708.61 and 224,400.80 is: 309,571.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,449.45 : 520,708.61 = 224,400.80 : x
  2. Step 2: Convert to fraction form
    377,449.45/520,708.61 = 224,400.80/x
  3. Step 3: Cross multiply
    377,449.45x = 520,708.61 × 224,400.80
  4. Step 4: Simplify right side
    377,449.45x = 116,847,428,288.59
  5. Step 5: Solve for x
    x = 116,847,428,288.59/377,449.45
  6. Step 6: Final answer
    x = 309,571.06

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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.