Home / 224,612.22-309,965.52-122,638.56

Finding the Fourth Proportional to 224,612.22, 309,965.52 and 122,638.56

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Solution

The fourth proportional to 224,612.22, 309,965.52 and 122,638.56 is: 169,241.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,612.22 : 309,965.52 = 122,638.56 : x
  2. Step 2: Convert to fraction form
    224,612.22/309,965.52 = 122,638.56/x
  3. Step 3: Cross multiply
    224,612.22x = 309,965.52 × 122,638.56
  4. Step 4: Simplify right side
    224,612.22x = 38,013,725,022.45
  5. Step 5: Solve for x
    x = 38,013,725,022.45/224,612.22
  6. Step 6: Final answer
    x = 169,241.57

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1.5x scale

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.