Home / 268,290.90-402,448.56-189,755.73

Finding the Fourth Proportional to 268,290.90, 402,448.56 and 189,755.73

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Solution

The fourth proportional to 268,290.90, 402,448.56 and 189,755.73 is: 284,642.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,290.90 : 402,448.56 = 189,755.73 : x
  2. Step 2: Convert to fraction form
    268,290.90/402,448.56 = 189,755.73/x
  3. Step 3: Cross multiply
    268,290.90x = 402,448.56 × 189,755.73
  4. Step 4: Simplify right side
    268,290.90x = 76,366,920,290.25
  5. Step 5: Solve for x
    x = 76,366,920,290.25/268,290.90
  6. Step 6: Final answer
    x = 284,642.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.