Home / 287,735.49-396,912.15-180,118.62

Finding the Fourth Proportional to 287,735.49, 396,912.15 and 180,118.62

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Solution

The fourth proportional to 287,735.49, 396,912.15 and 180,118.62 is: 248,461.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,735.49 : 396,912.15 = 180,118.62 : x
  2. Step 2: Convert to fraction form
    287,735.49/396,912.15 = 180,118.62/x
  3. Step 3: Cross multiply
    287,735.49x = 396,912.15 × 180,118.62
  4. Step 4: Simplify right side
    287,735.49x = 71,491,268,719.23
  5. Step 5: Solve for x
    x = 71,491,268,719.23/287,735.49
  6. Step 6: Final answer
    x = 248,461.77

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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.