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Finding the Fourth Proportional to 382,486.43, 527,820.66 and 208,050.86

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Solution

The fourth proportional to 382,486.43, 527,820.66 and 208,050.86 is: 287,104.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,486.43 : 527,820.66 = 208,050.86 : x
  2. Step 2: Convert to fraction form
    382,486.43/527,820.66 = 208,050.86/x
  3. Step 3: Cross multiply
    382,486.43x = 527,820.66 × 208,050.86
  4. Step 4: Simplify right side
    382,486.43x = 109,813,543,558.32
  5. Step 5: Solve for x
    x = 109,813,543,558.32/382,486.43
  6. Step 6: Final answer
    x = 287,104.42

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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.