Home / 320,627.28-481,022.88-187,619.28

Finding the Fourth Proportional to 320,627.28, 481,022.88 and 187,619.28

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Solution

The fourth proportional to 320,627.28, 481,022.88 and 187,619.28 is: 281,476.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,627.28 : 481,022.88 = 187,619.28 : x
  2. Step 2: Convert to fraction form
    320,627.28/481,022.88 = 187,619.28/x
  3. Step 3: Cross multiply
    320,627.28x = 481,022.88 × 187,619.28
  4. Step 4: Simplify right side
    320,627.28x = 90,249,166,409.13
  5. Step 5: Solve for x
    x = 90,249,166,409.13/320,627.28
  6. Step 6: Final answer
    x = 281,476.88

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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.