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Finding the Fourth Proportional to 277,242.21, 415,914.75 and 87,750.27

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Solution

The fourth proportional to 277,242.21, 415,914.75 and 87,750.27 is: 131,641.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,242.21 : 415,914.75 = 87,750.27 : x
  2. Step 2: Convert to fraction form
    277,242.21/415,914.75 = 87,750.27/x
  3. Step 3: Cross multiply
    277,242.21x = 415,914.75 × 87,750.27
  4. Step 4: Simplify right side
    277,242.21x = 36,496,631,609.48
  5. Step 5: Solve for x
    x = 36,496,631,609.48/277,242.21
  6. Step 6: Final answer
    x = 131,641.68

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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.