Home / 268,187.28-401,668.56-128,044.32

Finding the Fourth Proportional to 268,187.28, 401,668.56 and 128,044.32

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Solution

The fourth proportional to 268,187.28, 401,668.56 and 128,044.32 is: 191,774.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,187.28 : 401,668.56 = 128,044.32 : x
  2. Step 2: Convert to fraction form
    268,187.28/401,668.56 = 128,044.32/x
  3. Step 3: Cross multiply
    268,187.28x = 401,668.56 × 128,044.32
  4. Step 4: Simplify right side
    268,187.28x = 51,431,377,630.58
  5. Step 5: Solve for x
    x = 51,431,377,630.58/268,187.28
  6. Step 6: Final answer
    x = 191,774.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.