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Finding the Fourth Proportional to 256,242, 383,881.86 and 236,908.92

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Solution

The fourth proportional to 256,242, 383,881.86 and 236,908.92 is: 354,918.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,242 : 383,881.86 = 236,908.92 : x
  2. Step 2: Convert to fraction form
    256,242/383,881.86 = 236,908.92/x
  3. Step 3: Cross multiply
    256,242x = 383,881.86 × 236,908.92
  4. Step 4: Simplify right side
    256,242x = 90,945,036,860.19
  5. Step 5: Solve for x
    x = 90,945,036,860.19/256,242
  6. Step 6: Final answer
    x = 354,918.54

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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.