Home / 331,731.60-457,790.40-188,539.20

Finding the Fourth Proportional to 331,731.60, 457,790.40 and 188,539.20

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Solution

The fourth proportional to 331,731.60, 457,790.40 and 188,539.20 is: 260,184.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,731.60 : 457,790.40 = 188,539.20 : x
  2. Step 2: Convert to fraction form
    331,731.60/457,790.40 = 188,539.20/x
  3. Step 3: Cross multiply
    331,731.60x = 457,790.40 × 188,539.20
  4. Step 4: Simplify right side
    331,731.60x = 86,311,435,783.68
  5. Step 5: Solve for x
    x = 86,311,435,783.68/331,731.60
  6. Step 6: Final answer
    x = 260,184.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.