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Finding the Fourth Proportional to 315,227.76, 472,219.56 and 236,430.96

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Solution

The fourth proportional to 315,227.76, 472,219.56 and 236,430.96 is: 354,179.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,227.76 : 472,219.56 = 236,430.96 : x
  2. Step 2: Convert to fraction form
    315,227.76/472,219.56 = 236,430.96/x
  3. Step 3: Cross multiply
    315,227.76x = 472,219.56 × 236,430.96
  4. Step 4: Simplify right side
    315,227.76x = 111,647,323,901.58
  5. Step 5: Solve for x
    x = 111,647,323,901.58/315,227.76
  6. Step 6: Final answer
    x = 354,179.86

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1.5x scale

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.