Home / 309,634.10-427,342.61-173,723.06

Finding the Fourth Proportional to 309,634.10, 427,342.61 and 173,723.06

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Solution

The fourth proportional to 309,634.10, 427,342.61 and 173,723.06 is: 239,764.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,634.10 : 427,342.61 = 173,723.06 : x
  2. Step 2: Convert to fraction form
    309,634.10/427,342.61 = 173,723.06/x
  3. Step 3: Cross multiply
    309,634.10x = 427,342.61 × 173,723.06
  4. Step 4: Simplify right side
    309,634.10x = 74,239,265,877.59
  5. Step 5: Solve for x
    x = 74,239,265,877.59/309,634.10
  6. Step 6: Final answer
    x = 239,764.50

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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.