Home / 320,690.43-481,104.36-118,287.27

Finding the Fourth Proportional to 320,690.43, 481,104.36 and 118,287.27

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Solution

The fourth proportional to 320,690.43, 481,104.36 and 118,287.27 is: 177,456.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,690.43 : 481,104.36 = 118,287.27 : x
  2. Step 2: Convert to fraction form
    320,690.43/481,104.36 = 118,287.27/x
  3. Step 3: Cross multiply
    320,690.43x = 481,104.36 × 118,287.27
  4. Step 4: Simplify right side
    320,690.43x = 56,908,521,329.50
  5. Step 5: Solve for x
    x = 56,908,521,329.50/320,690.43
  6. Step 6: Final answer
    x = 177,456.25

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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.