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Finding the Fourth Proportional to 316,573.38, 436,906.27 and 180,640.80

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Solution

The fourth proportional to 316,573.38, 436,906.27 and 180,640.80 is: 249,304.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,573.38 : 436,906.27 = 180,640.80 : x
  2. Step 2: Convert to fraction form
    316,573.38/436,906.27 = 180,640.80/x
  3. Step 3: Cross multiply
    316,573.38x = 436,906.27 × 180,640.80
  4. Step 4: Simplify right side
    316,573.38x = 78,923,098,137.82
  5. Step 5: Solve for x
    x = 78,923,098,137.82/316,573.38
  6. Step 6: Final answer
    x = 249,304.28

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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.