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Finding the Fourth Proportional to 393,289.76, 590,131.56 and 180,057.28

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Solution

The fourth proportional to 393,289.76, 590,131.56 and 180,057.28 is: 270,176.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,289.76 : 590,131.56 = 180,057.28 : x
  2. Step 2: Convert to fraction form
    393,289.76/590,131.56 = 180,057.28/x
  3. Step 3: Cross multiply
    393,289.76x = 590,131.56 × 180,057.28
  4. Step 4: Simplify right side
    393,289.76x = 106,257,483,535.76
  5. Step 5: Solve for x
    x = 106,257,483,535.76/393,289.76
  6. Step 6: Final answer
    x = 270,176.07

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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.