Home / 280,344.80-386,869.66-153,022.52

Finding the Fourth Proportional to 280,344.80, 386,869.66 and 153,022.52

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Solution

The fourth proportional to 280,344.80, 386,869.66 and 153,022.52 is: 211,167.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,344.80 : 386,869.66 = 153,022.52 : x
  2. Step 2: Convert to fraction form
    280,344.80/386,869.66 = 153,022.52/x
  3. Step 3: Cross multiply
    280,344.80x = 386,869.66 × 153,022.52
  4. Step 4: Simplify right side
    280,344.80x = 59,199,770,284.74
  5. Step 5: Solve for x
    x = 59,199,770,284.74/280,344.80
  6. Step 6: Final answer
    x = 211,167.71

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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.