Home / 294,629.80-442,098.30-128,434.60

Finding the Fourth Proportional to 294,629.80, 442,098.30 and 128,434.60

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Solution

The fourth proportional to 294,629.80, 442,098.30 and 128,434.60 is: 192,718.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,629.80 : 442,098.30 = 128,434.60 : x
  2. Step 2: Convert to fraction form
    294,629.80/442,098.30 = 128,434.60/x
  3. Step 3: Cross multiply
    294,629.80x = 442,098.30 × 128,434.60
  4. Step 4: Simplify right side
    294,629.80x = 56,780,718,321.18
  5. Step 5: Solve for x
    x = 56,780,718,321.18/294,629.80
  6. Step 6: Final answer
    x = 192,718.86

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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.