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Finding the Fourth Proportional to 311,554.58, 429,945.71 and 168,314.63

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Solution

The fourth proportional to 311,554.58, 429,945.71 and 168,314.63 is: 232,274.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,554.58 : 429,945.71 = 168,314.63 : x
  2. Step 2: Convert to fraction form
    311,554.58/429,945.71 = 168,314.63/x
  3. Step 3: Cross multiply
    311,554.58x = 429,945.71 × 168,314.63
  4. Step 4: Simplify right side
    311,554.58x = 72,366,150,107.44
  5. Step 5: Solve for x
    x = 72,366,150,107.44/311,554.58
  6. Step 6: Final answer
    x = 232,274.39

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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.