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Finding the Fourth Proportional to 330,094.80, 494,996.40 and 130,348.80

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Solution

The fourth proportional to 330,094.80, 494,996.40 and 130,348.80 is: 195,465.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,094.80 : 494,996.40 = 130,348.80 : x
  2. Step 2: Convert to fraction form
    330,094.80/494,996.40 = 130,348.80/x
  3. Step 3: Cross multiply
    330,094.80x = 494,996.40 × 130,348.80
  4. Step 4: Simplify right side
    330,094.80x = 64,522,186,744.32
  5. Step 5: Solve for x
    x = 64,522,186,744.32/330,094.80
  6. Step 6: Final answer
    x = 195,465.63

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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.