Home / 638,026.20-957,168.90-217,344.60

Finding the Fourth Proportional to 638,026.20, 957,168.90 and 217,344.60

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Solution

The fourth proportional to 638,026.20, 957,168.90 and 217,344.60 is: 326,061.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,026.20 : 957,168.90 = 217,344.60 : x
  2. Step 2: Convert to fraction form
    638,026.20/957,168.90 = 217,344.60/x
  3. Step 3: Cross multiply
    638,026.20x = 957,168.90 × 217,344.60
  4. Step 4: Simplify right side
    638,026.20x = 208,035,491,702.94
  5. Step 5: Solve for x
    x = 208,035,491,702.94/638,026.20
  6. Step 6: Final answer
    x = 326,061.05

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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.