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Finding the Fourth Proportional to 340,147.66, 469,246.72 and 219,327.75

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Solution

The fourth proportional to 340,147.66, 469,246.72 and 219,327.75 is: 302,571.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,147.66 : 469,246.72 = 219,327.75 : x
  2. Step 2: Convert to fraction form
    340,147.66/469,246.72 = 219,327.75/x
  3. Step 3: Cross multiply
    340,147.66x = 469,246.72 × 219,327.75
  4. Step 4: Simplify right side
    340,147.66x = 102,918,827,292.48
  5. Step 5: Solve for x
    x = 102,918,827,292.48/340,147.66
  6. Step 6: Final answer
    x = 302,571.03

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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.