Home / 272,628.22-409,025.74-139,602.60

Finding the Fourth Proportional to 272,628.22, 409,025.74 and 139,602.60

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Solution

The fourth proportional to 272,628.22, 409,025.74 and 139,602.60 is: 209,446.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,628.22 : 409,025.74 = 139,602.60 : x
  2. Step 2: Convert to fraction form
    272,628.22/409,025.74 = 139,602.60/x
  3. Step 3: Cross multiply
    272,628.22x = 409,025.74 × 139,602.60
  4. Step 4: Simplify right side
    272,628.22x = 57,101,056,770.92
  5. Step 5: Solve for x
    x = 57,101,056,770.92/272,628.22
  6. Step 6: Final answer
    x = 209,446.61

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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.