Home / 282,190.36-389,283.96-205,590.28

Finding the Fourth Proportional to 282,190.36, 389,283.96 and 205,590.28

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Solution

The fourth proportional to 282,190.36, 389,283.96 and 205,590.28 is: 283,613.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,190.36 : 389,283.96 = 205,590.28 : x
  2. Step 2: Convert to fraction form
    282,190.36/389,283.96 = 205,590.28/x
  3. Step 3: Cross multiply
    282,190.36x = 389,283.96 × 205,590.28
  4. Step 4: Simplify right side
    282,190.36x = 80,032,998,335.91
  5. Step 5: Solve for x
    x = 80,032,998,335.91/282,190.36
  6. Step 6: Final answer
    x = 283,613.51

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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.