Home / 287,299.14-396,464.69-156,473.82

Finding the Fourth Proportional to 287,299.14, 396,464.69 and 156,473.82

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Solution

The fourth proportional to 287,299.14, 396,464.69 and 156,473.82 is: 215,929.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,299.14 : 396,464.69 = 156,473.82 : x
  2. Step 2: Convert to fraction form
    287,299.14/396,464.69 = 156,473.82/x
  3. Step 3: Cross multiply
    287,299.14x = 396,464.69 × 156,473.82
  4. Step 4: Simplify right side
    287,299.14x = 62,036,343,757.05
  5. Step 5: Solve for x
    x = 62,036,343,757.05/287,299.14
  6. Step 6: Final answer
    x = 215,929.44

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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.