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Finding the Fourth Proportional to 329,112.80, 493,669.20 and 188,885.60

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Solution

The fourth proportional to 329,112.80, 493,669.20 and 188,885.60 is: 283,328.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,112.80 : 493,669.20 = 188,885.60 : x
  2. Step 2: Convert to fraction form
    329,112.80/493,669.20 = 188,885.60/x
  3. Step 3: Cross multiply
    329,112.80x = 493,669.20 × 188,885.60
  4. Step 4: Simplify right side
    329,112.80x = 93,247,003,043.52
  5. Step 5: Solve for x
    x = 93,247,003,043.52/329,112.80
  6. Step 6: Final answer
    x = 283,328.40

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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.