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Finding the Fourth Proportional to 315,194.83, 434,960.28 and 171,954.85

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Solution

The fourth proportional to 315,194.83, 434,960.28 and 171,954.85 is: 237,293.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,194.83 : 434,960.28 = 171,954.85 : x
  2. Step 2: Convert to fraction form
    315,194.83/434,960.28 = 171,954.85/x
  3. Step 3: Cross multiply
    315,194.83x = 434,960.28 × 171,954.85
  4. Step 4: Simplify right side
    315,194.83x = 74,793,529,703.36
  5. Step 5: Solve for x
    x = 74,793,529,703.36/315,194.83
  6. Step 6: Final answer
    x = 237,293.01

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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.