Home / 260,029.12-389,966.40-110,267.20

Finding the Fourth Proportional to 260,029.12, 389,966.40 and 110,267.20

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Solution

The fourth proportional to 260,029.12, 389,966.40 and 110,267.20 is: 165,368.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,029.12 : 389,966.40 = 110,267.20 : x
  2. Step 2: Convert to fraction form
    260,029.12/389,966.40 = 110,267.20/x
  3. Step 3: Cross multiply
    260,029.12x = 389,966.40 × 110,267.20
  4. Step 4: Simplify right side
    260,029.12x = 43,000,503,022.08
  5. Step 5: Solve for x
    x = 43,000,503,022.08/260,029.12
  6. Step 6: Final answer
    x = 165,368.03

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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.