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Finding the Fourth Proportional to 321,087.48, 443,094.84 and 177,847.08

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Solution

The fourth proportional to 321,087.48, 443,094.84 and 177,847.08 is: 245,425.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,087.48 : 443,094.84 = 177,847.08 : x
  2. Step 2: Convert to fraction form
    321,087.48/443,094.84 = 177,847.08/x
  3. Step 3: Cross multiply
    321,087.48x = 443,094.84 × 177,847.08
  4. Step 4: Simplify right side
    321,087.48x = 78,803,123,457.07
  5. Step 5: Solve for x
    x = 78,803,123,457.07/321,087.48
  6. Step 6: Final answer
    x = 245,425.71

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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.