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Finding the Fourth Proportional to 291,485.87, 437,131.14 and 111,529.43

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Solution

The fourth proportional to 291,485.87, 437,131.14 and 111,529.43 is: 167,256.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,485.87 : 437,131.14 = 111,529.43 : x
  2. Step 2: Convert to fraction form
    291,485.87/437,131.14 = 111,529.43/x
  3. Step 3: Cross multiply
    291,485.87x = 437,131.14 × 111,529.43
  4. Step 4: Simplify right side
    291,485.87x = 48,752,985,162.20
  5. Step 5: Solve for x
    x = 48,752,985,162.20/291,485.87
  6. Step 6: Final answer
    x = 167,256.77

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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.