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Finding the Fourth Proportional to 321,720.30, 444,027.12 and 178,526.46

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Solution

The fourth proportional to 321,720.30, 444,027.12 and 178,526.46 is: 246,395.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,720.30 : 444,027.12 = 178,526.46 : x
  2. Step 2: Convert to fraction form
    321,720.30/444,027.12 = 178,526.46/x
  3. Step 3: Cross multiply
    321,720.30x = 444,027.12 × 178,526.46
  4. Step 4: Simplify right side
    321,720.30x = 79,270,589,877.60
  5. Step 5: Solve for x
    x = 79,270,589,877.60/321,720.30
  6. Step 6: Final answer
    x = 246,395.98

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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.