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Finding the Fourth Proportional to 360,489.48, 497,478.72 and 199,355.44

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Solution

The fourth proportional to 360,489.48, 497,478.72 and 199,355.44 is: 275,112.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,489.48 : 497,478.72 = 199,355.44 : x
  2. Step 2: Convert to fraction form
    360,489.48/497,478.72 = 199,355.44/x
  3. Step 3: Cross multiply
    360,489.48x = 497,478.72 × 199,355.44
  4. Step 4: Simplify right side
    360,489.48x = 99,175,089,116.24
  5. Step 5: Solve for x
    x = 99,175,089,116.24/360,489.48
  6. Step 6: Final answer
    x = 275,112.30

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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.