Home / 383,669.28-529,470.24-213,884.64

Finding the Fourth Proportional to 383,669.28, 529,470.24 and 213,884.64

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Solution

The fourth proportional to 383,669.28, 529,470.24 and 213,884.64 is: 295,164.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,669.28 : 529,470.24 = 213,884.64 : x
  2. Step 2: Convert to fraction form
    383,669.28/529,470.24 = 213,884.64/x
  3. Step 3: Cross multiply
    383,669.28x = 529,470.24 × 213,884.64
  4. Step 4: Simplify right side
    383,669.28x = 113,245,551,673.11
  5. Step 5: Solve for x
    x = 113,245,551,673.11/383,669.28
  6. Step 6: Final answer
    x = 295,164.50

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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.