Home / 282,112.64-389,340.08-154,813.12

Finding the Fourth Proportional to 282,112.64, 389,340.08 and 154,813.12

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Solution

The fourth proportional to 282,112.64, 389,340.08 and 154,813.12 is: 213,655.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,112.64 : 389,340.08 = 154,813.12 : x
  2. Step 2: Convert to fraction form
    282,112.64/389,340.08 = 154,813.12/x
  3. Step 3: Cross multiply
    282,112.64x = 389,340.08 × 154,813.12
  4. Step 4: Simplify right side
    282,112.64x = 60,274,952,525.85
  5. Step 5: Solve for x
    x = 60,274,952,525.85/282,112.64
  6. Step 6: Final answer
    x = 213,655.63

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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.