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Finding the Fourth Proportional to 383,878.98, 575,818.39 and 206,141.49

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Solution

The fourth proportional to 383,878.98, 575,818.39 and 206,141.49 is: 309,212.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,878.98 : 575,818.39 = 206,141.49 : x
  2. Step 2: Convert to fraction form
    383,878.98/575,818.39 = 206,141.49/x
  3. Step 3: Cross multiply
    383,878.98x = 575,818.39 × 206,141.49
  4. Step 4: Simplify right side
    383,878.98x = 118,700,060,884.00
  5. Step 5: Solve for x
    x = 118,700,060,884.00/383,878.98
  6. Step 6: Final answer
    x = 309,212.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.