Home / 260,380.11-359,310.10-145,636.58

Finding the Fourth Proportional to 260,380.11, 359,310.10 and 145,636.58

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Solution

The fourth proportional to 260,380.11, 359,310.10 and 145,636.58 is: 200,970.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,380.11 : 359,310.10 = 145,636.58 : x
  2. Step 2: Convert to fraction form
    260,380.11/359,310.10 = 145,636.58/x
  3. Step 3: Cross multiply
    260,380.11x = 359,310.10 × 145,636.58
  4. Step 4: Simplify right side
    260,380.11x = 52,328,694,657.64
  5. Step 5: Solve for x
    x = 52,328,694,657.64/260,380.11
  6. Step 6: Final answer
    x = 200,970.40

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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.