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Finding the Fourth Proportional to 282,187.80, 422,625.60 and 192,958.20

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Solution

The fourth proportional to 282,187.80, 422,625.60 and 192,958.20 is: 288,988.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,187.80 : 422,625.60 = 192,958.20 : x
  2. Step 2: Convert to fraction form
    282,187.80/422,625.60 = 192,958.20/x
  3. Step 3: Cross multiply
    282,187.80x = 422,625.60 × 192,958.20
  4. Step 4: Simplify right side
    282,187.80x = 81,549,075,049.92
  5. Step 5: Solve for x
    x = 81,549,075,049.92/282,187.80
  6. Step 6: Final answer
    x = 288,988.66

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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.