Home / 272,579.62-408,953.13-139,553.26

Finding the Fourth Proportional to 272,579.62, 408,953.13 and 139,553.26

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Solution

The fourth proportional to 272,579.62, 408,953.13 and 139,553.26 is: 209,372.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,579.62 : 408,953.13 = 139,553.26 : x
  2. Step 2: Convert to fraction form
    272,579.62/408,953.13 = 139,553.26/x
  3. Step 3: Cross multiply
    272,579.62x = 408,953.13 × 139,553.26
  4. Step 4: Simplify right side
    272,579.62x = 57,070,742,478.70
  5. Step 5: Solve for x
    x = 57,070,742,478.70/272,579.62
  6. Step 6: Final answer
    x = 209,372.74

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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.