Home / 287,253.76-396,464.64-190,286.08

Finding the Fourth Proportional to 287,253.76, 396,464.64 and 190,286.08

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Solution

The fourth proportional to 287,253.76, 396,464.64 and 190,286.08 is: 262,630.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,253.76 : 396,464.64 = 190,286.08 : x
  2. Step 2: Convert to fraction form
    287,253.76/396,464.64 = 190,286.08/x
  3. Step 3: Cross multiply
    287,253.76x = 396,464.64 × 190,286.08
  4. Step 4: Simplify right side
    287,253.76x = 75,441,702,204.21
  5. Step 5: Solve for x
    x = 75,441,702,204.21/287,253.76
  6. Step 6: Final answer
    x = 262,630.86

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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.