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Finding the Fourth Proportional to 291,692.70, 437,466.15 and 111,739.05

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Solution

The fourth proportional to 291,692.70, 437,466.15 and 111,739.05 is: 167,580.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,692.70 : 437,466.15 = 111,739.05 : x
  2. Step 2: Convert to fraction form
    291,692.70/437,466.15 = 111,739.05/x
  3. Step 3: Cross multiply
    291,692.70x = 437,466.15 × 111,739.05
  4. Step 4: Simplify right side
    291,692.70x = 48,882,052,008.16
  5. Step 5: Solve for x
    x = 48,882,052,008.16/291,692.70
  6. Step 6: Final answer
    x = 167,580.65

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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.