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Finding the Fourth Proportional to 260,750.10, 391,125.15 and 203,669.40

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Solution

The fourth proportional to 260,750.10, 391,125.15 and 203,669.40 is: 305,504.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,750.10 : 391,125.15 = 203,669.40 : x
  2. Step 2: Convert to fraction form
    260,750.10/391,125.15 = 203,669.40/x
  3. Step 3: Cross multiply
    260,750.10x = 391,125.15 × 203,669.40
  4. Step 4: Simplify right side
    260,750.10x = 79,660,224,625.41
  5. Step 5: Solve for x
    x = 79,660,224,625.41/260,750.10
  6. Step 6: Final answer
    x = 305,504.10

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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.