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Finding the Fourth Proportional to 320,668.96, 442,504.68 and 177,420.46

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Solution

The fourth proportional to 320,668.96, 442,504.68 and 177,420.46 is: 244,830.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,668.96 : 442,504.68 = 177,420.46 : x
  2. Step 2: Convert to fraction form
    320,668.96/442,504.68 = 177,420.46/x
  3. Step 3: Cross multiply
    320,668.96x = 442,504.68 × 177,420.46
  4. Step 4: Simplify right side
    320,668.96x = 78,509,383,877.75
  5. Step 5: Solve for x
    x = 78,509,383,877.75/320,668.96
  6. Step 6: Final answer
    x = 244,830.01

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1.5x scale

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.