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Finding the Fourth Proportional to 351,488.83, 485,054.60 and 190,343.88

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Solution

The fourth proportional to 351,488.83, 485,054.60 and 190,343.88 is: 262,674.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,488.83 : 485,054.60 = 190,343.88 : x
  2. Step 2: Convert to fraction form
    351,488.83/485,054.60 = 190,343.88/x
  3. Step 3: Cross multiply
    351,488.83x = 485,054.60 × 190,343.88
  4. Step 4: Simplify right side
    351,488.83x = 92,327,174,502.70
  5. Step 5: Solve for x
    x = 92,327,174,502.70/351,488.83
  6. Step 6: Final answer
    x = 262,674.56

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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.