Home / 311,828.50-468,005.64-122,421.88

Finding the Fourth Proportional to 311,828.50, 468,005.64 and 122,421.88

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Solution

The fourth proportional to 311,828.50, 468,005.64 and 122,421.88 is: 183,736.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,828.50 : 468,005.64 = 122,421.88 : x
  2. Step 2: Convert to fraction form
    311,828.50/468,005.64 = 122,421.88/x
  3. Step 3: Cross multiply
    311,828.50x = 468,005.64 × 122,421.88
  4. Step 4: Simplify right side
    311,828.50x = 57,294,131,027.87
  5. Step 5: Solve for x
    x = 57,294,131,027.87/311,828.50
  6. Step 6: Final answer
    x = 183,736.03

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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.