Home / 260,090.10-389,843.55-110,304.90

Finding the Fourth Proportional to 260,090.10, 389,843.55 and 110,304.90

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Solution

The fourth proportional to 260,090.10, 389,843.55 and 110,304.90 is: 165,333.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,090.10 : 389,843.55 = 110,304.90 : x
  2. Step 2: Convert to fraction form
    260,090.10/389,843.55 = 110,304.90/x
  3. Step 3: Cross multiply
    260,090.10x = 389,843.55 × 110,304.90
  4. Step 4: Simplify right side
    260,090.10x = 43,001,653,798.40
  5. Step 5: Solve for x
    x = 43,001,653,798.40/260,090.10
  6. Step 6: Final answer
    x = 165,333.68

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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.