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Finding the Fourth Proportional to 413,136.80, 619,705.20 and 245,175.20

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Solution

The fourth proportional to 413,136.80, 619,705.20 and 245,175.20 is: 367,762.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,136.80 : 619,705.20 = 245,175.20 : x
  2. Step 2: Convert to fraction form
    413,136.80/619,705.20 = 245,175.20/x
  3. Step 3: Cross multiply
    413,136.80x = 619,705.20 × 245,175.20
  4. Step 4: Simplify right side
    413,136.80x = 151,936,346,351.04
  5. Step 5: Solve for x
    x = 151,936,346,351.04/413,136.80
  6. Step 6: Final answer
    x = 367,762.80

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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.