Home / 224,247.69-309,489.66-128,752.34

Finding the Fourth Proportional to 224,247.69, 309,489.66 and 128,752.34

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Solution

The fourth proportional to 224,247.69, 309,489.66 and 128,752.34 is: 177,694.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,247.69 : 309,489.66 = 128,752.34 : x
  2. Step 2: Convert to fraction form
    224,247.69/309,489.66 = 128,752.34/x
  3. Step 3: Cross multiply
    224,247.69x = 309,489.66 × 128,752.34
  4. Step 4: Simplify right side
    224,247.69x = 39,847,516,383.36
  5. Step 5: Solve for x
    x = 39,847,516,383.36/224,247.69
  6. Step 6: Final answer
    x = 177,694.21

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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.