Home / 282,288.28-389,556.16-153,229.32

Finding the Fourth Proportional to 282,288.28, 389,556.16 and 153,229.32

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Solution

The fourth proportional to 282,288.28, 389,556.16 and 153,229.32 is: 211,455.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,288.28 : 389,556.16 = 153,229.32 : x
  2. Step 2: Convert to fraction form
    282,288.28/389,556.16 = 153,229.32/x
  3. Step 3: Cross multiply
    282,288.28x = 389,556.16 × 153,229.32
  4. Step 4: Simplify right side
    282,288.28x = 59,691,425,498.61
  5. Step 5: Solve for x
    x = 59,691,425,498.61/282,288.28
  6. Step 6: Final answer
    x = 211,455.56

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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.