Home / 294,921.32-442,309.05-126,422.55

Finding the Fourth Proportional to 294,921.32, 442,309.05 and 126,422.55

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Solution

The fourth proportional to 294,921.32, 442,309.05 and 126,422.55 is: 189,602.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,921.32 : 442,309.05 = 126,422.55 : x
  2. Step 2: Convert to fraction form
    294,921.32/442,309.05 = 126,422.55/x
  3. Step 3: Cross multiply
    294,921.32x = 442,309.05 × 126,422.55
  4. Step 4: Simplify right side
    294,921.32x = 55,917,837,989.08
  5. Step 5: Solve for x
    x = 55,917,837,989.08/294,921.32
  6. Step 6: Final answer
    x = 189,602.57

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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.