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Finding the Fourth Proportional to 383,638.56, 575,655.60 and 170,553.48

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Solution

The fourth proportional to 383,638.56, 575,655.60 and 170,553.48 is: 255,918.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,638.56 : 575,655.60 = 170,553.48 : x
  2. Step 2: Convert to fraction form
    383,638.56/575,655.60 = 170,553.48/x
  3. Step 3: Cross multiply
    383,638.56x = 575,655.60 × 170,553.48
  4. Step 4: Simplify right side
    383,638.56x = 98,180,065,861.49
  5. Step 5: Solve for x
    x = 98,180,065,861.49/383,638.56
  6. Step 6: Final answer
    x = 255,918.14

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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.