Home / 282,007.74-389,189.21-154,683.35

Finding the Fourth Proportional to 282,007.74, 389,189.21 and 154,683.35

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Solution

The fourth proportional to 282,007.74, 389,189.21 and 154,683.35 is: 213,473.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,007.74 : 389,189.21 = 154,683.35 : x
  2. Step 2: Convert to fraction form
    282,007.74/389,189.21 = 154,683.35/x
  3. Step 3: Cross multiply
    282,007.74x = 389,189.21 × 154,683.35
  4. Step 4: Simplify right side
    282,007.74x = 60,201,088,067.29
  5. Step 5: Solve for x
    x = 60,201,088,067.29/282,007.74
  6. Step 6: Final answer
    x = 213,473.18

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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.