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Finding the Fourth Proportional to 331,445.25, 457,394.45 and 180,542.25

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Solution

The fourth proportional to 331,445.25, 457,394.45 and 180,542.25 is: 249,148.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,445.25 : 457,394.45 = 180,542.25 : x
  2. Step 2: Convert to fraction form
    331,445.25/457,394.45 = 180,542.25/x
  3. Step 3: Cross multiply
    331,445.25x = 457,394.45 × 180,542.25
  4. Step 4: Simplify right side
    331,445.25x = 82,579,022,237.80
  5. Step 5: Solve for x
    x = 82,579,022,237.80/331,445.25
  6. Step 6: Final answer
    x = 249,148.31

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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.