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Finding the Fourth Proportional to 329,611.20, 494,416.80 and 307,492.80

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Solution

The fourth proportional to 329,611.20, 494,416.80 and 307,492.80 is: 461,239.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,611.20 : 494,416.80 = 307,492.80 : x
  2. Step 2: Convert to fraction form
    329,611.20/494,416.80 = 307,492.80/x
  3. Step 3: Cross multiply
    329,611.20x = 494,416.80 × 307,492.80
  4. Step 4: Simplify right side
    329,611.20x = 152,029,606,199.04
  5. Step 5: Solve for x
    x = 152,029,606,199.04/329,611.20
  6. Step 6: Final answer
    x = 461,239.20

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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.