Home / 282,130.26-389,339.78-161,274.18

Finding the Fourth Proportional to 282,130.26, 389,339.78 and 161,274.18

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Solution

The fourth proportional to 282,130.26, 389,339.78 and 161,274.18 is: 222,558.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,130.26 : 389,339.78 = 161,274.18 : x
  2. Step 2: Convert to fraction form
    282,130.26/389,339.78 = 161,274.18/x
  3. Step 3: Cross multiply
    282,130.26x = 389,339.78 × 161,274.18
  4. Step 4: Simplify right side
    282,130.26x = 62,790,452,954.51
  5. Step 5: Solve for x
    x = 62,790,452,954.51/282,130.26
  6. Step 6: Final answer
    x = 222,558.38

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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.