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Finding the Fourth Proportional to 256,245.30, 384,369.32 and 168,057.26

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Solution

The fourth proportional to 256,245.30, 384,369.32 and 168,057.26 is: 252,086.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,245.30 : 384,369.32 = 168,057.26 : x
  2. Step 2: Convert to fraction form
    256,245.30/384,369.32 = 168,057.26/x
  3. Step 3: Cross multiply
    256,245.30x = 384,369.32 × 168,057.26
  4. Step 4: Simplify right side
    256,245.30x = 64,596,051,985.13
  5. Step 5: Solve for x
    x = 64,596,051,985.13/256,245.30
  6. Step 6: Final answer
    x = 252,086.78

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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.