Home / 286,187.81-394,919.42-158,853.38

Finding the Fourth Proportional to 286,187.81, 394,919.42 and 158,853.38

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Solution

The fourth proportional to 286,187.81, 394,919.42 and 158,853.38 is: 219,206.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,187.81 : 394,919.42 = 158,853.38 : x
  2. Step 2: Convert to fraction form
    286,187.81/394,919.42 = 158,853.38/x
  3. Step 3: Cross multiply
    286,187.81x = 394,919.42 × 158,853.38
  4. Step 4: Simplify right side
    286,187.81x = 62,734,281,925.78
  5. Step 5: Solve for x
    x = 62,734,281,925.78/286,187.81
  6. Step 6: Final answer
    x = 219,206.69

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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.