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Finding the Fourth Proportional to 450,136.80, 674,782.80 and 169,842.40

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Solution

The fourth proportional to 450,136.80, 674,782.80 and 169,842.40 is: 254,604.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,136.80 : 674,782.80 = 169,842.40 : x
  2. Step 2: Convert to fraction form
    450,136.80/674,782.80 = 169,842.40/x
  3. Step 3: Cross multiply
    450,136.80x = 674,782.80 × 169,842.40
  4. Step 4: Simplify right side
    450,136.80x = 114,606,730,230.72
  5. Step 5: Solve for x
    x = 114,606,730,230.72/450,136.80
  6. Step 6: Final answer
    x = 254,604.22

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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.