Home / 260,121.51-358,962.21-145,396.95

Finding the Fourth Proportional to 260,121.51, 358,962.21 and 145,396.95

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Solution

The fourth proportional to 260,121.51, 358,962.21 and 145,396.95 is: 200,644.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,121.51 : 358,962.21 = 145,396.95 : x
  2. Step 2: Convert to fraction form
    260,121.51/358,962.21 = 145,396.95/x
  3. Step 3: Cross multiply
    260,121.51x = 358,962.21 × 145,396.95
  4. Step 4: Simplify right side
    260,121.51x = 52,192,010,499.26
  5. Step 5: Solve for x
    x = 52,192,010,499.26/260,121.51
  6. Step 6: Final answer
    x = 200,644.73

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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.