Home / 320,262.21-480,090.38-142,671.33

Finding the Fourth Proportional to 320,262.21, 480,090.38 and 142,671.33

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Solution

The fourth proportional to 320,262.21, 480,090.38 and 142,671.33 is: 213,872.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,262.21 : 480,090.38 = 142,671.33 : x
  2. Step 2: Convert to fraction form
    320,262.21/480,090.38 = 142,671.33/x
  3. Step 3: Cross multiply
    320,262.21x = 480,090.38 × 142,671.33
  4. Step 4: Simplify right side
    320,262.21x = 68,495,132,321.45
  5. Step 5: Solve for x
    x = 68,495,132,321.45/320,262.21
  6. Step 6: Final answer
    x = 213,872.04

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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.