Home / 256,091.16-384,131.70-115,751.64

Finding the Fourth Proportional to 256,091.16, 384,131.70 and 115,751.64

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Solution

The fourth proportional to 256,091.16, 384,131.70 and 115,751.64 is: 173,625.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,091.16 : 384,131.70 = 115,751.64 : x
  2. Step 2: Convert to fraction form
    256,091.16/384,131.70 = 115,751.64/x
  3. Step 3: Cross multiply
    256,091.16x = 384,131.70 × 115,751.64
  4. Step 4: Simplify right side
    256,091.16x = 44,463,874,250.99
  5. Step 5: Solve for x
    x = 44,463,874,250.99/256,091.16
  6. Step 6: Final answer
    x = 173,625.18

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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.