Home / 281,370.22-388,327.89-160,483.80

Finding the Fourth Proportional to 281,370.22, 388,327.89 and 160,483.80

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Solution

The fourth proportional to 281,370.22, 388,327.89 and 160,483.80 is: 221,488.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,370.22 : 388,327.89 = 160,483.80 : x
  2. Step 2: Convert to fraction form
    281,370.22/388,327.89 = 160,483.80/x
  3. Step 3: Cross multiply
    281,370.22x = 388,327.89 × 160,483.80
  4. Step 4: Simplify right side
    281,370.22x = 62,320,332,689.12
  5. Step 5: Solve for x
    x = 62,320,332,689.12/281,370.22
  6. Step 6: Final answer
    x = 221,488.73

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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.