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Finding the Fourth Proportional to 351,609.82, 485,221.50 and 190,464.82

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Solution

The fourth proportional to 351,609.82, 485,221.50 and 190,464.82 is: 262,841.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,609.82 : 485,221.50 = 190,464.82 : x
  2. Step 2: Convert to fraction form
    351,609.82/485,221.50 = 190,464.82/x
  3. Step 3: Cross multiply
    351,609.82x = 485,221.50 × 190,464.82
  4. Step 4: Simplify right side
    351,609.82x = 92,417,624,444.58
  5. Step 5: Solve for x
    x = 92,417,624,444.58/351,609.82
  6. Step 6: Final answer
    x = 262,841.42

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1.5x scale

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.