Home / 320,412.20-480,241.04-130,754.21

Finding the Fourth Proportional to 320,412.20, 480,241.04 and 130,754.21

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Solution

The fourth proportional to 320,412.20, 480,241.04 and 130,754.21 is: 195,977.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,412.20 : 480,241.04 = 130,754.21 : x
  2. Step 2: Convert to fraction form
    320,412.20/480,241.04 = 130,754.21/x
  3. Step 3: Cross multiply
    320,412.20x = 480,241.04 × 130,754.21
  4. Step 4: Simplify right side
    320,412.20x = 62,793,534,739.80
  5. Step 5: Solve for x
    x = 62,793,534,739.80/320,412.20
  6. Step 6: Final answer
    x = 195,977.36

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1.5x scale

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.