Home / 224,224.68-309,429.84-128,737.20

Finding the Fourth Proportional to 224,224.68, 309,429.84 and 128,737.20

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Solution

The fourth proportional to 224,224.68, 309,429.84 and 128,737.20 is: 177,657.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,224.68 : 309,429.84 = 128,737.20 : x
  2. Step 2: Convert to fraction form
    224,224.68/309,429.84 = 128,737.20/x
  3. Step 3: Cross multiply
    224,224.68x = 309,429.84 × 128,737.20
  4. Step 4: Simplify right side
    224,224.68x = 39,835,131,198.05
  5. Step 5: Solve for x
    x = 39,835,131,198.05/224,224.68
  6. Step 6: Final answer
    x = 177,657.21

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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.