Home / 455,045.30-682,276.34-188,989.46

Finding the Fourth Proportional to 455,045.30, 682,276.34 and 188,989.46

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Solution

The fourth proportional to 455,045.30, 682,276.34 and 188,989.46 is: 283,363.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,045.30 : 682,276.34 = 188,989.46 : x
  2. Step 2: Convert to fraction form
    455,045.30/682,276.34 = 188,989.46/x
  3. Step 3: Cross multiply
    455,045.30x = 682,276.34 × 188,989.46
  4. Step 4: Simplify right side
    455,045.30x = 128,943,037,067.38
  5. Step 5: Solve for x
    x = 128,943,037,067.38/455,045.30
  6. Step 6: Final answer
    x = 283,363.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.