Home / 272,555.37-408,916.62-139,529.88

Finding the Fourth Proportional to 272,555.37, 408,916.62 and 139,529.88

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Solution

The fourth proportional to 272,555.37, 408,916.62 and 139,529.88 is: 209,337.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,555.37 : 408,916.62 = 139,529.88 : x
  2. Step 2: Convert to fraction form
    272,555.37/408,916.62 = 139,529.88/x
  3. Step 3: Cross multiply
    272,555.37x = 408,916.62 × 139,529.88
  4. Step 4: Simplify right side
    272,555.37x = 57,056,086,918.61
  5. Step 5: Solve for x
    x = 57,056,086,918.61/272,555.37
  6. Step 6: Final answer
    x = 209,337.60

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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.