Home / 320,577.36-481,017.24-143,068.56

Finding the Fourth Proportional to 320,577.36, 481,017.24 and 143,068.56

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Solution

The fourth proportional to 320,577.36, 481,017.24 and 143,068.56 is: 214,670.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,577.36 : 481,017.24 = 143,068.56 : x
  2. Step 2: Convert to fraction form
    320,577.36/481,017.24 = 143,068.56/x
  3. Step 3: Cross multiply
    320,577.36x = 481,017.24 × 143,068.56
  4. Step 4: Simplify right side
    320,577.36x = 68,818,443,861.97
  5. Step 5: Solve for x
    x = 68,818,443,861.97/320,577.36
  6. Step 6: Final answer
    x = 214,670.32

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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.