Home / 320,916.67-481,028.86-208,677.40

Finding the Fourth Proportional to 320,916.67, 481,028.86 and 208,677.40

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Solution

The fourth proportional to 320,916.67, 481,028.86 and 208,677.40 is: 312,791.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,916.67 : 481,028.86 = 208,677.40 : x
  2. Step 2: Convert to fraction form
    320,916.67/481,028.86 = 208,677.40/x
  3. Step 3: Cross multiply
    320,916.67x = 481,028.86 × 208,677.40
  4. Step 4: Simplify right side
    320,916.67x = 100,379,850,888.04
  5. Step 5: Solve for x
    x = 100,379,850,888.04/320,916.67
  6. Step 6: Final answer
    x = 312,791.02

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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.