Home / 286,935.20-429,884.40-253,757.60

Finding the Fourth Proportional to 286,935.20, 429,884.40 and 253,757.60

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Solution

The fourth proportional to 286,935.20, 429,884.40 and 253,757.60 is: 380,177.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,935.20 : 429,884.40 = 253,757.60 : x
  2. Step 2: Convert to fraction form
    286,935.20/429,884.40 = 253,757.60/x
  3. Step 3: Cross multiply
    286,935.20x = 429,884.40 × 253,757.60
  4. Step 4: Simplify right side
    286,935.20x = 109,086,433,621.44
  5. Step 5: Solve for x
    x = 109,086,433,621.44/286,935.20
  6. Step 6: Final answer
    x = 380,177.94

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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.