Home / 282,120.40-389,326.62-154,796.95

Finding the Fourth Proportional to 282,120.40, 389,326.62 and 154,796.95

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Solution

The fourth proportional to 282,120.40, 389,326.62 and 154,796.95 is: 213,620.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,120.40 : 389,326.62 = 154,796.95 : x
  2. Step 2: Convert to fraction form
    282,120.40/389,326.62 = 154,796.95/x
  3. Step 3: Cross multiply
    282,120.40x = 389,326.62 × 154,796.95
  4. Step 4: Simplify right side
    282,120.40x = 60,266,573,329.81
  5. Step 5: Solve for x
    x = 60,266,573,329.81/282,120.40
  6. Step 6: Final answer
    x = 213,620.05

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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.