Home / 260,990.13-360,149.33-153,539.40

Finding the Fourth Proportional to 260,990.13, 360,149.33 and 153,539.40

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Solution

The fourth proportional to 260,990.13, 360,149.33 and 153,539.40 is: 211,874.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,990.13 : 360,149.33 = 153,539.40 : x
  2. Step 2: Convert to fraction form
    260,990.13/360,149.33 = 153,539.40/x
  3. Step 3: Cross multiply
    260,990.13x = 360,149.33 × 153,539.40
  4. Step 4: Simplify right side
    260,990.13x = 55,297,111,270.91
  5. Step 5: Solve for x
    x = 55,297,111,270.91/260,990.13
  6. Step 6: Final answer
    x = 211,874.34

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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.