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Finding the Fourth Proportional to 311,573.58, 429,973.41 and 173,761.21

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Solution

The fourth proportional to 311,573.58, 429,973.41 and 173,761.21 is: 239,791.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,573.58 : 429,973.41 = 173,761.21 : x
  2. Step 2: Convert to fraction form
    311,573.58/429,973.41 = 173,761.21/x
  3. Step 3: Cross multiply
    311,573.58x = 429,973.41 × 173,761.21
  4. Step 4: Simplify right side
    311,573.58x = 74,712,699,989.43
  5. Step 5: Solve for x
    x = 74,712,699,989.43/311,573.58
  6. Step 6: Final answer
    x = 239,791.51

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1.5x scale

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.