Home / 383,455.43-529,157.90-213,685.19

Finding the Fourth Proportional to 383,455.43, 529,157.90 and 213,685.19

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Solution

The fourth proportional to 383,455.43, 529,157.90 and 213,685.19 is: 294,879.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,455.43 : 529,157.90 = 213,685.19 : x
  2. Step 2: Convert to fraction form
    383,455.43/529,157.90 = 213,685.19/x
  3. Step 3: Cross multiply
    383,455.43x = 529,157.90 × 213,685.19
  4. Step 4: Simplify right side
    383,455.43x = 113,073,205,333.08
  5. Step 5: Solve for x
    x = 113,073,205,333.08/383,455.43
  6. Step 6: Final answer
    x = 294,879.66

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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.