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Finding the Fourth Proportional to 277,271.98, 415,981.66 and 87,735.72

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Solution

The fourth proportional to 277,271.98, 415,981.66 and 87,735.72 is: 131,626.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,271.98 : 415,981.66 = 87,735.72 : x
  2. Step 2: Convert to fraction form
    277,271.98/415,981.66 = 87,735.72/x
  3. Step 3: Cross multiply
    277,271.98x = 415,981.66 × 87,735.72
  4. Step 4: Simplify right side
    277,271.98x = 36,496,449,406.94
  5. Step 5: Solve for x
    x = 36,496,449,406.94/277,271.98
  6. Step 6: Final answer
    x = 131,626.89

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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.