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Finding the Fourth Proportional to 268,290.77, 402,448.38 and 189,755.60

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Solution

The fourth proportional to 268,290.77, 402,448.38 and 189,755.60 is: 284,642.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,290.77 : 402,448.38 = 189,755.60 : x
  2. Step 2: Convert to fraction form
    268,290.77/402,448.38 = 189,755.60/x
  3. Step 3: Cross multiply
    268,290.77x = 402,448.38 × 189,755.60
  4. Step 4: Simplify right side
    268,290.77x = 76,366,832,867.15
  5. Step 5: Solve for x
    x = 76,366,832,867.15/268,290.77
  6. Step 6: Final answer
    x = 284,642.04

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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.