Home / 455,221.26-628,201.87-251,272.16

Finding the Fourth Proportional to 455,221.26, 628,201.87 and 251,272.16

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Solution

The fourth proportional to 455,221.26, 628,201.87 and 251,272.16 is: 346,753.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,221.26 : 628,201.87 = 251,272.16 : x
  2. Step 2: Convert to fraction form
    455,221.26/628,201.87 = 251,272.16/x
  3. Step 3: Cross multiply
    455,221.26x = 628,201.87 × 251,272.16
  4. Step 4: Simplify right side
    455,221.26x = 157,849,640,790.94
  5. Step 5: Solve for x
    x = 157,849,640,790.94/455,221.26
  6. Step 6: Final answer
    x = 346,753.67

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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.