Home / 320,419.60-479,973.30-162,736.90

Finding the Fourth Proportional to 320,419.60, 479,973.30 and 162,736.90

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Solution

The fourth proportional to 320,419.60, 479,973.30 and 162,736.90 is: 243,772.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,419.60 : 479,973.30 = 162,736.90 : x
  2. Step 2: Convert to fraction form
    320,419.60/479,973.30 = 162,736.90/x
  3. Step 3: Cross multiply
    320,419.60x = 479,973.30 × 162,736.90
  4. Step 4: Simplify right side
    320,419.60x = 78,109,366,924.77
  5. Step 5: Solve for x
    x = 78,109,366,924.77/320,419.60
  6. Step 6: Final answer
    x = 243,772.13

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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.