Home / 287,268.12-396,059.40-235,392.30

Finding the Fourth Proportional to 287,268.12, 396,059.40 and 235,392.30

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Solution

The fourth proportional to 287,268.12, 396,059.40 and 235,392.30 is: 324,537.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,268.12 : 396,059.40 = 235,392.30 : x
  2. Step 2: Convert to fraction form
    287,268.12/396,059.40 = 235,392.30/x
  3. Step 3: Cross multiply
    287,268.12x = 396,059.40 × 235,392.30
  4. Step 4: Simplify right side
    287,268.12x = 93,229,333,102.62
  5. Step 5: Solve for x
    x = 93,229,333,102.62/287,268.12
  6. Step 6: Final answer
    x = 324,537.69

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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.