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Finding the Fourth Proportional to 445,495.80, 668,114.10 and 245,911.80

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Solution

The fourth proportional to 445,495.80, 668,114.10 and 245,911.80 is: 368,796.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,495.80 : 668,114.10 = 245,911.80 : x
  2. Step 2: Convert to fraction form
    445,495.80/668,114.10 = 245,911.80/x
  3. Step 3: Cross multiply
    445,495.80x = 668,114.10 × 245,911.80
  4. Step 4: Simplify right side
    445,495.80x = 164,297,140,936.38
  5. Step 5: Solve for x
    x = 164,297,140,936.38/445,495.80
  6. Step 6: Final answer
    x = 368,796.16

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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.