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Finding the Fourth Proportional to 154,477.90, 231,716.85 and 119,485.90

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Solution

The fourth proportional to 154,477.90, 231,716.85 and 119,485.90 is: 179,228.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,477.90 : 231,716.85 = 119,485.90 : x
  2. Step 2: Convert to fraction form
    154,477.90/231,716.85 = 119,485.90/x
  3. Step 3: Cross multiply
    154,477.90x = 231,716.85 × 119,485.90
  4. Step 4: Simplify right side
    154,477.90x = 27,686,896,367.42
  5. Step 5: Solve for x
    x = 27,686,896,367.42/154,477.90
  6. Step 6: Final answer
    x = 179,228.85

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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.