Home / 204,487.12-306,779.32-64,245.80

Finding the Fourth Proportional to 204,487.12, 306,779.32 and 64,245.80

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Solution

The fourth proportional to 204,487.12, 306,779.32 and 64,245.80 is: 96,383.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,487.12 : 306,779.32 = 64,245.80 : x
  2. Step 2: Convert to fraction form
    204,487.12/306,779.32 = 64,245.80/x
  3. Step 3: Cross multiply
    204,487.12x = 306,779.32 × 64,245.80
  4. Step 4: Simplify right side
    204,487.12x = 19,709,282,836.86
  5. Step 5: Solve for x
    x = 19,709,282,836.86/204,487.12
  6. Step 6: Final answer
    x = 96,383.98

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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.