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Finding the Fourth Proportional to 384,856.08, 531,116.15 and 255,571.04

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Solution

The fourth proportional to 384,856.08, 531,116.15 and 255,571.04 is: 352,697.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,856.08 : 531,116.15 = 255,571.04 : x
  2. Step 2: Convert to fraction form
    384,856.08/531,116.15 = 255,571.04/x
  3. Step 3: Cross multiply
    384,856.08x = 531,116.15 × 255,571.04
  4. Step 4: Simplify right side
    384,856.08x = 135,737,906,127.43
  5. Step 5: Solve for x
    x = 135,737,906,127.43/384,856.08
  6. Step 6: Final answer
    x = 352,697.84

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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.