Home / 645,264.20-967,896.30-172,022.60

Finding the Fourth Proportional to 645,264.20, 967,896.30 and 172,022.60

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Solution

The fourth proportional to 645,264.20, 967,896.30 and 172,022.60 is: 258,033.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,264.20 : 967,896.30 = 172,022.60 : x
  2. Step 2: Convert to fraction form
    645,264.20/967,896.30 = 172,022.60/x
  3. Step 3: Cross multiply
    645,264.20x = 967,896.30 × 172,022.60
  4. Step 4: Simplify right side
    645,264.20x = 166,500,038,056.38
  5. Step 5: Solve for x
    x = 166,500,038,056.38/645,264.20
  6. Step 6: Final answer
    x = 258,033.90

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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.