Home / 309,899.59-464,788.18-85,202.08

Finding the Fourth Proportional to 309,899.59, 464,788.18 and 85,202.08

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Solution

The fourth proportional to 309,899.59, 464,788.18 and 85,202.08 is: 127,786.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,899.59 : 464,788.18 = 85,202.08 : x
  2. Step 2: Convert to fraction form
    309,899.59/464,788.18 = 85,202.08/x
  3. Step 3: Cross multiply
    309,899.59x = 464,788.18 × 85,202.08
  4. Step 4: Simplify right side
    309,899.59x = 39,600,919,695.41
  5. Step 5: Solve for x
    x = 39,600,919,695.41/309,899.59
  6. Step 6: Final answer
    x = 127,786.29

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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.