Home / 224,619.49-309,981.28-122,651.41

Finding the Fourth Proportional to 224,619.49, 309,981.28 and 122,651.41

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Solution

The fourth proportional to 224,619.49, 309,981.28 and 122,651.41 is: 169,262.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,619.49 : 309,981.28 = 122,651.41 : x
  2. Step 2: Convert to fraction form
    224,619.49/309,981.28 = 122,651.41/x
  3. Step 3: Cross multiply
    224,619.49x = 309,981.28 × 122,651.41
  4. Step 4: Simplify right side
    224,619.49x = 38,019,641,957.64
  5. Step 5: Solve for x
    x = 38,019,641,957.64/224,619.49
  6. Step 6: Final answer
    x = 169,262.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.