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Finding the Fourth Proportional to 271,947.60, 407,921.72 and 84,960.08

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Solution

The fourth proportional to 271,947.60, 407,921.72 and 84,960.08 is: 127,440.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,947.60 : 407,921.72 = 84,960.08 : x
  2. Step 2: Convert to fraction form
    271,947.60/407,921.72 = 84,960.08/x
  3. Step 3: Cross multiply
    271,947.60x = 407,921.72 × 84,960.08
  4. Step 4: Simplify right side
    271,947.60x = 34,657,061,964.94
  5. Step 5: Solve for x
    x = 34,657,061,964.94/271,947.60
  6. Step 6: Final answer
    x = 127,440.22

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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.