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Finding the Fourth Proportional to 383,555.46, 529,308.99 and 213,800.34

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Solution

The fourth proportional to 383,555.46, 529,308.99 and 213,800.34 is: 295,045.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,555.46 : 529,308.99 = 213,800.34 : x
  2. Step 2: Convert to fraction form
    383,555.46/529,308.99 = 213,800.34/x
  3. Step 3: Cross multiply
    383,555.46x = 529,308.99 × 213,800.34
  4. Step 4: Simplify right side
    383,555.46x = 113,166,442,027.06
  5. Step 5: Solve for x
    x = 113,166,442,027.06/383,555.46
  6. Step 6: Final answer
    x = 295,045.84

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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.