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Finding the Fourth Proportional to 321,139.08, 482,150.88 and 163,477.44

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Solution

The fourth proportional to 321,139.08, 482,150.88 and 163,477.44 is: 245,441.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,139.08 : 482,150.88 = 163,477.44 : x
  2. Step 2: Convert to fraction form
    321,139.08/482,150.88 = 163,477.44/x
  3. Step 3: Cross multiply
    321,139.08x = 482,150.88 × 163,477.44
  4. Step 4: Simplify right side
    321,139.08x = 78,820,791,556.15
  5. Step 5: Solve for x
    x = 78,820,791,556.15/321,139.08
  6. Step 6: Final answer
    x = 245,441.29

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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.