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Finding the Fourth Proportional to 315,177, 434,944.26 and 171,937.62

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Solution

The fourth proportional to 315,177, 434,944.26 and 171,937.62 is: 237,273.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,177 : 434,944.26 = 171,937.62 : x
  2. Step 2: Convert to fraction form
    315,177/434,944.26 = 171,937.62/x
  3. Step 3: Cross multiply
    315,177x = 434,944.26 × 171,937.62
  4. Step 4: Simplify right side
    315,177x = 74,783,280,897.06
  5. Step 5: Solve for x
    x = 74,783,280,897.06/315,177
  6. Step 6: Final answer
    x = 237,273.92

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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.