Home / 282,111.24-389,338.74-154,811.64

Finding the Fourth Proportional to 282,111.24, 389,338.74 and 154,811.64

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Solution

The fourth proportional to 282,111.24, 389,338.74 and 154,811.64 is: 213,653.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,111.24 : 389,338.74 = 154,811.64 : x
  2. Step 2: Convert to fraction form
    282,111.24/389,338.74 = 154,811.64/x
  3. Step 3: Cross multiply
    282,111.24x = 389,338.74 × 154,811.64
  4. Step 4: Simplify right side
    282,111.24x = 60,274,168,854.93
  5. Step 5: Solve for x
    x = 60,274,168,854.93/282,111.24
  6. Step 6: Final answer
    x = 213,653.91

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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.