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Finding the Fourth Proportional to 321,184.80, 481,777.20 and 134,196.30

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Solution

The fourth proportional to 321,184.80, 481,777.20 and 134,196.30 is: 201,294.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,184.80 : 481,777.20 = 134,196.30 : x
  2. Step 2: Convert to fraction form
    321,184.80/481,777.20 = 134,196.30/x
  3. Step 3: Cross multiply
    321,184.80x = 481,777.20 × 134,196.30
  4. Step 4: Simplify right side
    321,184.80x = 64,652,717,664.36
  5. Step 5: Solve for x
    x = 64,652,717,664.36/321,184.80
  6. Step 6: Final answer
    x = 201,294.45

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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.