Home / 455,311.90-682,421.10-188,935.30

Finding the Fourth Proportional to 455,311.90, 682,421.10 and 188,935.30

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Solution

The fourth proportional to 455,311.90, 682,421.10 and 188,935.30 is: 283,176.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,311.90 : 682,421.10 = 188,935.30 : x
  2. Step 2: Convert to fraction form
    455,311.90/682,421.10 = 188,935.30/x
  3. Step 3: Cross multiply
    455,311.90x = 682,421.10 × 188,935.30
  4. Step 4: Simplify right side
    455,311.90x = 128,933,435,254.83
  5. Step 5: Solve for x
    x = 128,933,435,254.83/455,311.90
  6. Step 6: Final answer
    x = 283,176.07

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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.