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Finding the Fourth Proportional to 494,136.60, 741,204.90 and 120,159.60

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Solution

The fourth proportional to 494,136.60, 741,204.90 and 120,159.60 is: 180,239.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,136.60 : 741,204.90 = 120,159.60 : x
  2. Step 2: Convert to fraction form
    494,136.60/741,204.90 = 120,159.60/x
  3. Step 3: Cross multiply
    494,136.60x = 741,204.90 × 120,159.60
  4. Step 4: Simplify right side
    494,136.60x = 89,062,884,302.04
  5. Step 5: Solve for x
    x = 89,062,884,302.04/494,136.60
  6. Step 6: Final answer
    x = 180,239.40

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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.