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Finding the Fourth Proportional to 315,184.01, 434,954.97 and 171,947.07

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Solution

The fourth proportional to 315,184.01, 434,954.97 and 171,947.07 is: 237,287.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,184.01 : 434,954.97 = 171,947.07 : x
  2. Step 2: Convert to fraction form
    315,184.01/434,954.97 = 171,947.07/x
  3. Step 3: Cross multiply
    315,184.01x = 434,954.97 × 171,947.07
  4. Step 4: Simplify right side
    315,184.01x = 74,789,232,673.44
  5. Step 5: Solve for x
    x = 74,789,232,673.44/315,184.01
  6. Step 6: Final answer
    x = 237,287.53

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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.