Home / 272,315.45-407,981.10-222,123.80

Finding the Fourth Proportional to 272,315.45, 407,981.10 and 222,123.80

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Solution

The fourth proportional to 272,315.45, 407,981.10 and 222,123.80 is: 332,784.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,315.45 : 407,981.10 = 222,123.80 : x
  2. Step 2: Convert to fraction form
    272,315.45/407,981.10 = 222,123.80/x
  3. Step 3: Cross multiply
    272,315.45x = 407,981.10 × 222,123.80
  4. Step 4: Simplify right side
    272,315.45x = 90,622,312,260.18
  5. Step 5: Solve for x
    x = 90,622,312,260.18/272,315.45
  6. Step 6: Final answer
    x = 332,784.32

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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.