Home / 281,512.38-388,493.40-160,651.26

Finding the Fourth Proportional to 281,512.38, 388,493.40 and 160,651.26

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Solution

The fourth proportional to 281,512.38, 388,493.40 and 160,651.26 is: 221,702.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,512.38 : 388,493.40 = 160,651.26 : x
  2. Step 2: Convert to fraction form
    281,512.38/388,493.40 = 160,651.26/x
  3. Step 3: Cross multiply
    281,512.38x = 388,493.40 × 160,651.26
  4. Step 4: Simplify right side
    281,512.38x = 62,411,954,211.68
  5. Step 5: Solve for x
    x = 62,411,954,211.68/281,512.38
  6. Step 6: Final answer
    x = 221,702.34

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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.