Home / 219,025.83-302,198.51-128,333.07

Finding the Fourth Proportional to 219,025.83, 302,198.51 and 128,333.07

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Solution

The fourth proportional to 219,025.83, 302,198.51 and 128,333.07 is: 177,066.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,025.83 : 302,198.51 = 128,333.07 : x
  2. Step 2: Convert to fraction form
    219,025.83/302,198.51 = 128,333.07/x
  3. Step 3: Cross multiply
    219,025.83x = 302,198.51 × 128,333.07
  4. Step 4: Simplify right side
    219,025.83x = 38,782,062,858.56
  5. Step 5: Solve for x
    x = 38,782,062,858.56/219,025.83
  6. Step 6: Final answer
    x = 177,066.16

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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.