Home / 374,589.44-516,837.48-221,620.40

Finding the Fourth Proportional to 374,589.44, 516,837.48 and 221,620.40

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Solution

The fourth proportional to 374,589.44, 516,837.48 and 221,620.40 is: 305,779.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,589.44 : 516,837.48 = 221,620.40 : x
  2. Step 2: Convert to fraction form
    374,589.44/516,837.48 = 221,620.40/x
  3. Step 3: Cross multiply
    374,589.44x = 516,837.48 × 221,620.40
  4. Step 4: Simplify right side
    374,589.44x = 114,541,729,052.59
  5. Step 5: Solve for x
    x = 114,541,729,052.59/374,589.44
  6. Step 6: Final answer
    x = 305,779.39

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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.