Home / 287,585.38-396,608.83-180,164.80

Finding the Fourth Proportional to 287,585.38, 396,608.83 and 180,164.80

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Solution

The fourth proportional to 287,585.38, 396,608.83 and 180,164.80 is: 248,465.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,585.38 : 396,608.83 = 180,164.80 : x
  2. Step 2: Convert to fraction form
    287,585.38/396,608.83 = 180,164.80/x
  3. Step 3: Cross multiply
    287,585.38x = 396,608.83 × 180,164.80
  4. Step 4: Simplify right side
    287,585.38x = 71,454,950,535.18
  5. Step 5: Solve for x
    x = 71,454,950,535.18/287,585.38
  6. Step 6: Final answer
    x = 248,465.17

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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.