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Finding the Fourth Proportional to 311,830.00, 468,007.89 and 122,423.39

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Solution

The fourth proportional to 311,830.00, 468,007.89 and 122,423.39 is: 183,738.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,830.00 : 468,007.89 = 122,423.39 : x
  2. Step 2: Convert to fraction form
    311,830.00/468,007.89 = 122,423.39/x
  3. Step 3: Cross multiply
    311,830.00x = 468,007.89 × 122,423.39
  4. Step 4: Simplify right side
    311,830.00x = 57,295,110,100.51
  5. Step 5: Solve for x
    x = 57,295,110,100.51/311,830.00
  6. Step 6: Final answer
    x = 183,738.29

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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.