Home / 316,845.55-475,112.80-156,736.50

Finding the Fourth Proportional to 316,845.55, 475,112.80 and 156,736.50

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Solution

The fourth proportional to 316,845.55, 475,112.80 and 156,736.50 is: 235,027.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,845.55 : 475,112.80 = 156,736.50 : x
  2. Step 2: Convert to fraction form
    316,845.55/475,112.80 = 156,736.50/x
  3. Step 3: Cross multiply
    316,845.55x = 475,112.80 × 156,736.50
  4. Step 4: Simplify right side
    316,845.55x = 74,467,517,377.20
  5. Step 5: Solve for x
    x = 74,467,517,377.20/316,845.55
  6. Step 6: Final answer
    x = 235,027.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.