Home / 355,420.68-490,480.55-194,276.36

Finding the Fourth Proportional to 355,420.68, 490,480.55 and 194,276.36

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Solution

The fourth proportional to 355,420.68, 490,480.55 and 194,276.36 is: 268,101.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,420.68 : 490,480.55 = 194,276.36 : x
  2. Step 2: Convert to fraction form
    355,420.68/490,480.55 = 194,276.36/x
  3. Step 3: Cross multiply
    355,420.68x = 490,480.55 × 194,276.36
  4. Step 4: Simplify right side
    355,420.68x = 95,288,772,481.01
  5. Step 5: Solve for x
    x = 95,288,772,481.01/355,420.68
  6. Step 6: Final answer
    x = 268,101.37

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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.