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Finding the Fourth Proportional to 271,807.60, 407,711.40 and 84,794.80

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Solution

The fourth proportional to 271,807.60, 407,711.40 and 84,794.80 is: 127,192.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,807.60 : 407,711.40 = 84,794.80 : x
  2. Step 2: Convert to fraction form
    271,807.60/407,711.40 = 84,794.80/x
  3. Step 3: Cross multiply
    271,807.60x = 407,711.40 × 84,794.80
  4. Step 4: Simplify right side
    271,807.60x = 34,571,806,620.72
  5. Step 5: Solve for x
    x = 34,571,806,620.72/271,807.60
  6. Step 6: Final answer
    x = 127,192.20

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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.