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Finding the Fourth Proportional to 375,955.34, 518,770.58 and 214,820.83

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Solution

The fourth proportional to 375,955.34, 518,770.58 and 214,820.83 is: 296,425.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,955.34 : 518,770.58 = 214,820.83 : x
  2. Step 2: Convert to fraction form
    375,955.34/518,770.58 = 214,820.83/x
  3. Step 3: Cross multiply
    375,955.34x = 518,770.58 × 214,820.83
  4. Step 4: Simplify right side
    375,955.34x = 111,442,723,231.46
  5. Step 5: Solve for x
    x = 111,442,723,231.46/375,955.34
  6. Step 6: Final answer
    x = 296,425.43

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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.