Home / 294,879.22-442,319.30-126,386.36

Finding the Fourth Proportional to 294,879.22, 442,319.30 and 126,386.36

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Solution

The fourth proportional to 294,879.22, 442,319.30 and 126,386.36 is: 189,579.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,879.22 : 442,319.30 = 126,386.36 : x
  2. Step 2: Convert to fraction form
    294,879.22/442,319.30 = 126,386.36/x
  3. Step 3: Cross multiply
    294,879.22x = 442,319.30 × 126,386.36
  4. Step 4: Simplify right side
    294,879.22x = 55,903,125,573.87
  5. Step 5: Solve for x
    x = 55,903,125,573.87/294,879.22
  6. Step 6: Final answer
    x = 189,579.74

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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.