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Finding the Fourth Proportional to 340,575.75, 470,009.13 and 189,672.75

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Solution

The fourth proportional to 340,575.75, 470,009.13 and 189,672.75 is: 261,756.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,575.75 : 470,009.13 = 189,672.75 : x
  2. Step 2: Convert to fraction form
    340,575.75/470,009.13 = 189,672.75/x
  3. Step 3: Cross multiply
    340,575.75x = 470,009.13 × 189,672.75
  4. Step 4: Simplify right side
    340,575.75x = 89,147,924,212.21
  5. Step 5: Solve for x
    x = 89,147,924,212.21/340,575.75
  6. Step 6: Final answer
    x = 261,756.52

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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.