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Finding the Fourth Proportional to 277,236.95, 415,870.55 and 87,683.16

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Solution

The fourth proportional to 277,236.95, 415,870.55 and 87,683.16 is: 131,529.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,236.95 : 415,870.55 = 87,683.16 : x
  2. Step 2: Convert to fraction form
    277,236.95/415,870.55 = 87,683.16/x
  3. Step 3: Cross multiply
    277,236.95x = 415,870.55 × 87,683.16
  4. Step 4: Simplify right side
    277,236.95x = 36,464,843,974.94
  5. Step 5: Solve for x
    x = 36,464,843,974.94/277,236.95
  6. Step 6: Final answer
    x = 131,529.53

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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.