Home / 224,338.36-309,587.16-128,863.51

Finding the Fourth Proportional to 224,338.36, 309,587.16 and 128,863.51

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Solution

The fourth proportional to 224,338.36, 309,587.16 and 128,863.51 is: 177,831.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,338.36 : 309,587.16 = 128,863.51 : x
  2. Step 2: Convert to fraction form
    224,338.36/309,587.16 = 128,863.51/x
  3. Step 3: Cross multiply
    224,338.36x = 309,587.16 × 128,863.51
  4. Step 4: Simplify right side
    224,338.36x = 39,894,487,797.80
  5. Step 5: Solve for x
    x = 39,894,487,797.80/224,338.36
  6. Step 6: Final answer
    x = 177,831.77

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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.