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Finding the Fourth Proportional to 263,770.20, 395,825.40 and 145,526.40

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Solution

The fourth proportional to 263,770.20, 395,825.40 and 145,526.40 is: 218,383.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,770.20 : 395,825.40 = 145,526.40 : x
  2. Step 2: Convert to fraction form
    263,770.20/395,825.40 = 145,526.40/x
  3. Step 3: Cross multiply
    263,770.20x = 395,825.40 × 145,526.40
  4. Step 4: Simplify right side
    263,770.20x = 57,603,045,490.56
  5. Step 5: Solve for x
    x = 57,603,045,490.56/263,770.20
  6. Step 6: Final answer
    x = 218,383.45

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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.