Home / 455,141.20-628,092.68-253,936.72

Finding the Fourth Proportional to 455,141.20, 628,092.68 and 253,936.72

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Solution

The fourth proportional to 455,141.20, 628,092.68 and 253,936.72 is: 350,431.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,141.20 : 628,092.68 = 253,936.72 : x
  2. Step 2: Convert to fraction form
    455,141.20/628,092.68 = 253,936.72/x
  3. Step 3: Cross multiply
    455,141.20x = 628,092.68 × 253,936.72
  4. Step 4: Simplify right side
    455,141.20x = 159,495,795,015.21
  5. Step 5: Solve for x
    x = 159,495,795,015.21/455,141.20
  6. Step 6: Final answer
    x = 350,431.46

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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.