Home / 282,205.40-389,443.71-161,349.23

Finding the Fourth Proportional to 282,205.40, 389,443.71 and 161,349.23

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Solution

The fourth proportional to 282,205.40, 389,443.71 and 161,349.23 is: 222,662.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,205.40 : 389,443.71 = 161,349.23 : x
  2. Step 2: Convert to fraction form
    282,205.40/389,443.71 = 161,349.23/x
  3. Step 3: Cross multiply
    282,205.40x = 389,443.71 × 161,349.23
  4. Step 4: Simplify right side
    282,205.40x = 62,836,442,736.84
  5. Step 5: Solve for x
    x = 62,836,442,736.84/282,205.40
  6. Step 6: Final answer
    x = 222,662.08

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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.