Home / 282,110.22-389,308.61-154,785.71

Finding the Fourth Proportional to 282,110.22, 389,308.61 and 154,785.71

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Solution

The fourth proportional to 282,110.22, 389,308.61 and 154,785.71 is: 213,602.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,110.22 : 389,308.61 = 154,785.71 : x
  2. Step 2: Convert to fraction form
    282,110.22/389,308.61 = 154,785.71/x
  3. Step 3: Cross multiply
    282,110.22x = 389,308.61 × 154,785.71
  4. Step 4: Simplify right side
    282,110.22x = 60,259,410,968.20
  5. Step 5: Solve for x
    x = 60,259,410,968.20/282,110.22
  6. Step 6: Final answer
    x = 213,602.37

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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.