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Finding the Fourth Proportional to 329,026.60, 493,611.90 and 129,346.60

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Solution

The fourth proportional to 329,026.60, 493,611.90 and 129,346.60 is: 194,048.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,026.60 : 493,611.90 = 129,346.60 : x
  2. Step 2: Convert to fraction form
    329,026.60/493,611.90 = 129,346.60/x
  3. Step 3: Cross multiply
    329,026.60x = 493,611.90 × 129,346.60
  4. Step 4: Simplify right side
    329,026.60x = 63,847,020,984.54
  5. Step 5: Solve for x
    x = 63,847,020,984.54/329,026.60
  6. Step 6: Final answer
    x = 194,048.20

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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.