Home / 224,028.64-309,157.12-128,550.36

Finding the Fourth Proportional to 224,028.64, 309,157.12 and 128,550.36

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Solution

The fourth proportional to 224,028.64, 309,157.12 and 128,550.36 is: 177,398.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,028.64 : 309,157.12 = 128,550.36 : x
  2. Step 2: Convert to fraction form
    224,028.64/309,157.12 = 128,550.36/x
  3. Step 3: Cross multiply
    224,028.64x = 309,157.12 × 128,550.36
  4. Step 4: Simplify right side
    224,028.64x = 39,742,259,072.56
  5. Step 5: Solve for x
    x = 39,742,259,072.56/224,028.64
  6. Step 6: Final answer
    x = 177,398.12

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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.