Home / 294,918.82-442,305.31-126,420.05

Finding the Fourth Proportional to 294,918.82, 442,305.31 and 126,420.05

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Solution

The fourth proportional to 294,918.82, 442,305.31 and 126,420.05 is: 189,598.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,918.82 : 442,305.31 = 126,420.05 : x
  2. Step 2: Convert to fraction form
    294,918.82/442,305.31 = 126,420.05/x
  3. Step 3: Cross multiply
    294,918.82x = 442,305.31 × 126,420.05
  4. Step 4: Simplify right side
    294,918.82x = 55,916,259,405.47
  5. Step 5: Solve for x
    x = 55,916,259,405.47/294,918.82
  6. Step 6: Final answer
    x = 189,598.82

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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.