Home / 282,120.57-389,333.18-154,796.06

Finding the Fourth Proportional to 282,120.57, 389,333.18 and 154,796.06

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Solution

The fourth proportional to 282,120.57, 389,333.18 and 154,796.06 is: 213,622.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,120.57 : 389,333.18 = 154,796.06 : x
  2. Step 2: Convert to fraction form
    282,120.57/389,333.18 = 154,796.06/x
  3. Step 3: Cross multiply
    282,120.57x = 389,333.18 × 154,796.06
  4. Step 4: Simplify right side
    282,120.57x = 60,267,243,651.59
  5. Step 5: Solve for x
    x = 60,267,243,651.59/282,120.57
  6. Step 6: Final answer
    x = 213,622.30

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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.