Home / 434,680.20-652,020.30-119,136.60

Finding the Fourth Proportional to 434,680.20, 652,020.30 and 119,136.60

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Solution

The fourth proportional to 434,680.20, 652,020.30 and 119,136.60 is: 178,704.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,680.20 : 652,020.30 = 119,136.60 : x
  2. Step 2: Convert to fraction form
    434,680.20/652,020.30 = 119,136.60/x
  3. Step 3: Cross multiply
    434,680.20x = 652,020.30 × 119,136.60
  4. Step 4: Simplify right side
    434,680.20x = 77,679,481,672.98
  5. Step 5: Solve for x
    x = 77,679,481,672.98/434,680.20
  6. Step 6: Final answer
    x = 178,704.90

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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.