Home / 294,891.22-442,181.31-128,588.50

Finding the Fourth Proportional to 294,891.22, 442,181.31 and 128,588.50

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Solution

The fourth proportional to 294,891.22, 442,181.31 and 128,588.50 is: 192,814.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,891.22 : 442,181.31 = 128,588.50 : x
  2. Step 2: Convert to fraction form
    294,891.22/442,181.31 = 128,588.50/x
  3. Step 3: Cross multiply
    294,891.22x = 442,181.31 × 128,588.50
  4. Step 4: Simplify right side
    294,891.22x = 56,859,431,380.94
  5. Step 5: Solve for x
    x = 56,859,431,380.94/294,891.22
  6. Step 6: Final answer
    x = 192,814.93

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1.5x scale

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.