Home / 645,266.20-967,899.30-172,024.60

Finding the Fourth Proportional to 645,266.20, 967,899.30 and 172,024.60

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Solution

The fourth proportional to 645,266.20, 967,899.30 and 172,024.60 is: 258,036.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,266.20 : 967,899.30 = 172,024.60 : x
  2. Step 2: Convert to fraction form
    645,266.20/967,899.30 = 172,024.60/x
  3. Step 3: Cross multiply
    645,266.20x = 967,899.30 × 172,024.60
  4. Step 4: Simplify right side
    645,266.20x = 166,502,489,922.78
  5. Step 5: Solve for x
    x = 166,502,489,922.78/645,266.20
  6. Step 6: Final answer
    x = 258,036.90

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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.