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Finding the Fourth Proportional to 539,638.88, 809,317.22 and 160,457.49

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Solution

The fourth proportional to 539,638.88, 809,317.22 and 160,457.49 is: 240,644.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,638.88 : 809,317.22 = 160,457.49 : x
  2. Step 2: Convert to fraction form
    539,638.88/809,317.22 = 160,457.49/x
  3. Step 3: Cross multiply
    539,638.88x = 809,317.22 × 160,457.49
  4. Step 4: Simplify right side
    539,638.88x = 129,861,008,932.69
  5. Step 5: Solve for x
    x = 129,861,008,932.69/539,638.88
  6. Step 6: Final answer
    x = 240,644.28

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1.5x scale

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.