Home / 306,266.09-422,654.52-170,305.76

Finding the Fourth Proportional to 306,266.09, 422,654.52 and 170,305.76

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Solution

The fourth proportional to 306,266.09, 422,654.52 and 170,305.76 is: 235,026.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,266.09 : 422,654.52 = 170,305.76 : x
  2. Step 2: Convert to fraction form
    306,266.09/422,654.52 = 170,305.76/x
  3. Step 3: Cross multiply
    306,266.09x = 422,654.52 × 170,305.76
  4. Step 4: Simplify right side
    306,266.09x = 71,980,500,941.32
  5. Step 5: Solve for x
    x = 71,980,500,941.32/306,266.09
  6. Step 6: Final answer
    x = 235,026.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.