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Finding the Fourth Proportional to 376,079.98, 518,914.08 and 223,051.02

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Solution

The fourth proportional to 376,079.98, 518,914.08 and 223,051.02 is: 307,765.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,079.98 : 518,914.08 = 223,051.02 : x
  2. Step 2: Convert to fraction form
    376,079.98/518,914.08 = 223,051.02/x
  3. Step 3: Cross multiply
    376,079.98x = 518,914.08 × 223,051.02
  4. Step 4: Simplify right side
    376,079.98x = 115,744,314,836.36
  5. Step 5: Solve for x
    x = 115,744,314,836.36/376,079.98
  6. Step 6: Final answer
    x = 307,765.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.