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Finding the Fourth Proportional to 276,692.70, 415,039.05 and 164,718.30

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Solution

The fourth proportional to 276,692.70, 415,039.05 and 164,718.30 is: 247,077.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,692.70 : 415,039.05 = 164,718.30 : x
  2. Step 2: Convert to fraction form
    276,692.70/415,039.05 = 164,718.30/x
  3. Step 3: Cross multiply
    276,692.70x = 415,039.05 × 164,718.30
  4. Step 4: Simplify right side
    276,692.70x = 68,364,526,749.62
  5. Step 5: Solve for x
    x = 68,364,526,749.62/276,692.70
  6. Step 6: Final answer
    x = 247,077.45

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1.5x scale

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.