Home / 281,627.82-388,692.27-160,774.20

Finding the Fourth Proportional to 281,627.82, 388,692.27 and 160,774.20

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Solution

The fourth proportional to 281,627.82, 388,692.27 and 160,774.20 is: 221,894.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,627.82 : 388,692.27 = 160,774.20 : x
  2. Step 2: Convert to fraction form
    281,627.82/388,692.27 = 160,774.20/x
  3. Step 3: Cross multiply
    281,627.82x = 388,692.27 × 160,774.20
  4. Step 4: Simplify right side
    281,627.82x = 62,491,688,755.43
  5. Step 5: Solve for x
    x = 62,491,688,755.43/281,627.82
  6. Step 6: Final answer
    x = 221,894.59

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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.